Commit Graph

1295838 Commits

Author SHA1 Message Date
Andy Shevchenko
e17465f78e
spi: pxa2xx: Move PM runtime handling to the glue drivers
PCI and platform buses have different defaults for runtime PM.
In particular PCI probe is assumed to be called when PM runtime
is enabled by the PCI core. In this case if we try enable it again
the PM runtime complaints with

    pxa2xx_spi_pci 0000:00:07.0: Unbalanced pm_runtime_enable!

Fix this by moving PM runtime handling from the SPI PXA2xx core
to the glue drivers.

Fixes: cc160697a5 ("spi: pxa2xx: Convert PCI driver to use spi-pxa2xx code directly")
Fixes: 3d8f037fbc ("spi: pxa2xx: Move platform driver to a separate file")
Fixes: 20ade9b977 ("spi: pxa2xx: Extract pxa2xx_spi_platform_*() callbacks")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240822113408.750831-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-22 13:34:06 +01:00
Andy Shevchenko
9a8fc292dd
spi: pxa2xx: Do not override dev->platform_data on probe
The platform_data field may be supplied by legacy board code.
In other cases we override it, and module remove and probe cycle
will crash the kernel since it will carry a stale pointer.

Fix this by supplying a third argument to the pxa2xx_spi_probe()
and avoid overriding dev->platform_data.

Reported-by: Hao Ma <hao.ma@intel.com>
Fixes: cc160697a5 ("spi: pxa2xx: Convert PCI driver to use spi-pxa2xx code directly")
Fixes: 3d8f037fbc ("spi: pxa2xx: Move platform driver to a separate file")
Fixes: 20ade9b977 ("spi: pxa2xx: Extract pxa2xx_spi_platform_*() callbacks")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240822113408.750831-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-22 13:34:05 +01:00
Bharat Bhushan
af688a99eb octeontx2-af: Fix CPT AF register offset calculation
Some CPT AF registers are per LF and others are global. Translation
of PF/VF local LF slot number to actual LF slot number is required
only for accessing perf LF registers. CPT AF global registers access
do not require any LF slot number. Also, there is no reason CPT
PF/VF to know actual lf's register offset.

Without this fix microcode loading will fail, VFs cannot be created
and hardware is not usable.

Fixes: bc35e28af7 ("octeontx2-af: replace cpt slot with lf id on reg write")
Signed-off-by: Bharat Bhushan <bbhushan2@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240821070558.1020101-1-bbhushan2@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22 13:14:46 +02:00
Sava Jakovljev
a2f5c505b4 net: phy: realtek: Fix setting of PHY LEDs Mode B bit on RTL8211F
The current implementation incorrectly sets the mode bit of the PHY chip.
Bit 15 (RTL8211F_LEDCR_MODE) should not be shifted together with the
configuration nibble of a LED- it should be set independently of the
index of the LED being configured.
As a consequence, the RTL8211F LED control is actually operating in Mode A.
Fix the error by or-ing final register value to write with a const-value of
RTL8211F_LEDCR_MODE, thus setting Mode bit explicitly.

Fixes: 17784801d8 ("net: phy: realtek: Add support for PHY LEDs on RTL8211F")
Signed-off-by: Sava Jakovljev <savaj@meyersound.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Link: https://patch.msgid.link/PAWP192MB21287372F30C4E55B6DF6158C38E2@PAWP192MB2128.EURP192.PROD.OUTLOOK.COM
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22 13:00:05 +02:00
Mengyuan Lou
f2916c83d7 net: ngbe: Fix phy mode set to external phy
The MAC only has add the TX delay and it can not be modified.
MAC and PHY are both set the TX delay cause transmission problems.
So just disable TX delay in PHY, when use rgmii to attach to
external phy, set PHY_INTERFACE_MODE_RGMII_RXID to phy drivers.
And it is does not matter to internal phy.

Fixes: bc2426d74a ("net: ngbe: convert phylib to phylink")
Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Cc: stable@vger.kernel.org # 6.3+
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/E6759CF1387CF84C+20240820030425.93003-1-mengyuanlou@net-swift.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22 12:28:33 +02:00
Pablo Neira Ayuso
6ea14ccb60 netfilter: flowtable: validate vlan header
Ensure there is sufficient room to access the protocol field of the
VLAN header, validate it once before the flowtable lookup.

=====================================================
BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32
 nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626
 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline]
 nf_ingress net/core/dev.c:5440 [inline]

Fixes: 4cd91f7c29 ("netfilter: flowtable: add vlan support")
Reported-by: syzbot+8407d9bb88cd4c6bf61a@syzkaller.appspotmail.com
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2024-08-22 12:14:18 +02:00
Marc Zyngier
3e6245ebe7 KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3
On a system with a GICv3, if a guest hasn't been configured with
GICv3 and that the host is not capable of GICv2 emulation,
a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2.

We therefore try to emulate the SGI access, only to hit a NULL
pointer as no private interrupt is allocated (no GIC, remember?).

The obvious fix is to give the guest what it deserves, in the
shape of a UNDEF exception.

Reported-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240820100349.3544850-2-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-08-22 08:08:37 +00:00
Oliver Upton
1d8c3c23a6 KVM: arm64: Ensure canonical IPA is hugepage-aligned when handling fault
Zenghui reports that VMs backed by hugetlb pages are no longer booting
after commit fd276e71d1 ("KVM: arm64: nv: Handle shadow stage 2 page
faults").

Support for shadow stage-2 MMUs introduced the concept of a fault IPA
and canonical IPA to stage-2 fault handling. These are identical in the
non-nested case, as the hardware stage-2 context is always that of the
canonical IPA space.

Both addresses need to be hugepage-aligned when preparing to install a
hugepage mapping to ensure that KVM uses the correct GFN->PFN translation
and installs that at the correct IPA for the current stage-2.

And now I'm feeling thirsty after all this talk of IPAs...

Fixes: fd276e71d1 ("KVM: arm64: nv: Handle shadow stage 2 page faults")
Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240822071710.2291690-1-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-08-22 07:41:00 +00:00
Kent Overstreet
87313ac1f1 bcachefs: clear path->should_be_locked in bch2_btree_key_cache_drop()
bch2_btree_key_cache_drop() evicts the key cache entry - it's used when
we're doing an update that bypasses the key cache, because for cache
coherency reasons a key can't be in the key cache unless it also exists
in the btree - i.e. creates have to bypass the cache.

After evicting, the path no longer points to a key cache key, and
relock() will always fail if should_be_locked is true.

Prep for improving path->should_be_locked assertions

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 03:12:57 -04:00
Yuesong Li
dedb2fe375 bcachefs: Fix double assignment in check_dirent_to_subvol()
ret was assigned twice in check_dirent_to_subvol(). Reported by cocci.

Signed-off-by: Yuesong Li <liyuesong@vivo.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:40:52 -04:00
Kent Overstreet
0b50b7313e bcachefs: Fix refcounting in discard path
bch_dev->io_ref does not protect against the filesystem going away;
bch_fs->writes does.

Thus the filesystem write ref needs to be the last ref we release.

Reported-by: syzbot+9e0404b505e604f67e41@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
8ed823b192 bcachefs: Fix compat issue with old alloc_v4 keys
we allow new fields to be added to existing key types, and new versions
should treat them as being zeroed; this was not handled in
alloc_v4_validate.

Reported-by: syzbot+3b2968fa4953885dd66a@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
7f2de6947f bcachefs: Fix warning in bch2_fs_journal_stop()
j->last_empty_seq needs to match j->seq when the journal is empty

Reported-by: syzbot+4093905737cf289b6b38@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
06f67437ab fs/super.c: improve get_tree() error message
seeing an odd bug where we fail to correctly return an error from
.get_tree():

https://syzkaller.appspot.com/bug?extid=c0360e8367d6d8d04a66

we need to be able to distinguish between accidently returning a
positive error (as implied by the log) and no error.

Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
bdbdd4759f bcachefs: Fix missing validation in bch2_sb_journal_v2_validate()
Reported-by: syzbot+47ecc948aadfb2ab3efc@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
cab18be695 bcachefs: Fix replay_now_at() assert
Journal replay, in the slowpath where we insert keys in journal order,
was inserting keys in the wrong order; keys from early repair come last.

Reported-by: syzbot+2c4fcb257ce2b6a29d0e@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
6575b8c987 bcachefs: Fix locking in bch2_ioc_setlabel()
Fixes: 7a254053a5 ("bcachefs: support FS_IOC_SETFSLABEL")
Reported-by: syzbot+7e9efdfec27fbde0141d@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
5dbfc4ef72 bcachefs: fix failure to relock in btree_node_fill()
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
3c5d0b72a8 bcachefs: fix failure to relock in bch2_btree_node_mem_alloc()
We weren't always so strict about trans->locked state - but now we are,
and new assertions are shaking some bugs out.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
1dceae4cc1 bcachefs: unlock_long() before resort in journal replay
Fix another SRCU splat - this one pretty harmless.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
cecc328240 bcachefs: fix missing bch2_err_str()
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:23 -04:00
Kent Overstreet
b8db1bd802 bcachefs: fix time_stats_to_text()
Fixes: 7423330e30 ("bcachefs: prt_printf() now respects \r\n\t")
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:22 -04:00
Kent Overstreet
c2a503f3e9 bcachefs: Fix bch2_bucket_gens_init()
Comparing the wrong bpos - this was missed because normally
bucket_gens_init() runs on brand new filesystems, but this bug caused it
to overwrite bucket_gens keys with 0s when upgrading ancient
filesystems.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:22 -04:00
Kent Overstreet
e150a7e89c bcachefs: Fix bch2_trigger_alloc assert
On testing on an old mangled filesystem, we missed a case.

Fixes: bd864bc2d9 ("bcachefs: Fix bch2_trigger_alloc when upgrading from old versions")
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:22 -04:00
Kent Overstreet
49203a6b9d bcachefs: Fix failure to relock in btree_node_get()
discovered by new trans->locked asserts

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:22 -04:00
Kent Overstreet
548e7f5167 bcachefs: setting bcachefs_effective.* xattrs is a noop
bcachefs_effective.* xattrs show the options inherited from parent
directories (as well as explicitly set); this namespace is not for
setting bcachefs options.

Change the .set() handler to a noop so that if e.g. rsync is copying
xattrs it'll do the right thing, and only copy xattrs in the bcachefs.*
namespace. We don't want to return an error, because that will cause
rsync to bail out or get spammy.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:22 -04:00
Kent Overstreet
8cc0e50614 bcachefs: Fix "trying to move an extent, but nr_replicas=0"
data_update_init() does a bunch of complicated stuff to decide how many
replicas to add, since we only want to increase an extent's durability
on an explicit rereplicate, but extent pointers may be on devices with
different durability settings.

There was a corner case when evacuating a device that had been set to
durability=0 after data had been written to it, and extents on that
device had already been rereplicated - then evacuate only needs to drop
pointers on that device, not move them.

So the assert for !m->op.nr_replicas was spurious; this was a perfectly
legitimate case that needed to be handled.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:22 -04:00
Kent Overstreet
3f53d05041 bcachefs: bch2_data_update_init() cleanup
Factor out some helpers - this function has gotten much too big.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-22 02:07:22 -04:00
Jakub Kicinski
a0b4a80ed6 Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2024-08-20 (ice)

This series contains updates to ice driver only.

Maciej fixes issues with Rx data path on architectures with
PAGE_SIZE >= 8192; correcting page reuse usage and calculations for
last offset and truesize.

Michal corrects assignment of devlink port number to use PF id.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  ice: use internal pf id instead of function number
  ice: fix truesize operations for PAGE_SIZE >= 8192
  ice: fix ICE_LAST_OFFSET formula
  ice: fix page reuse when PAGE_SIZE is over 8k
====================

Link: https://patch.msgid.link/20240820215620.1245310-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-21 18:05:24 -07:00
Somnath Kotur
8baeef7616 bnxt_en: Fix double DMA unmapping for XDP_REDIRECT
Remove the dma_unmap_page_attrs() call in the driver's XDP_REDIRECT
code path.  This should have been removed when we let the page pool
handle the DMA mapping.  This bug causes the warning:

WARNING: CPU: 7 PID: 59 at drivers/iommu/dma-iommu.c:1198 iommu_dma_unmap_page+0xd5/0x100
CPU: 7 PID: 59 Comm: ksoftirqd/7 Tainted: G        W          6.8.0-1010-gcp #11-Ubuntu
Hardware name: Dell Inc. PowerEdge R7525/0PYVT1, BIOS 2.15.2 04/02/2024
RIP: 0010:iommu_dma_unmap_page+0xd5/0x100
Code: 89 ee 48 89 df e8 cb f2 69 ff 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9 31 f6 31 ff 45 31 c0 e9 ab 17 71 00 <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9
RSP: 0018:ffffab1fc0597a48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff99ff838280c8 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffab1fc0597a78 R08: 0000000000000002 R09: ffffab1fc0597c1c
R10: ffffab1fc0597cd3 R11: ffff99ffe375acd8 R12: 00000000e65b9000
R13: 0000000000000050 R14: 0000000000001000 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff9a06efb80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000565c34c37210 CR3: 00000005c7e3e000 CR4: 0000000000350ef0
? show_regs+0x6d/0x80
? __warn+0x89/0x150
? iommu_dma_unmap_page+0xd5/0x100
? report_bug+0x16a/0x190
? handle_bug+0x51/0xa0
? exc_invalid_op+0x18/0x80
? iommu_dma_unmap_page+0xd5/0x100
? iommu_dma_unmap_page+0x35/0x100
dma_unmap_page_attrs+0x55/0x220
? bpf_prog_4d7e87c0d30db711_xdp_dispatcher+0x64/0x9f
bnxt_rx_xdp+0x237/0x520 [bnxt_en]
bnxt_rx_pkt+0x640/0xdd0 [bnxt_en]
__bnxt_poll_work+0x1a1/0x3d0 [bnxt_en]
bnxt_poll+0xaa/0x1e0 [bnxt_en]
__napi_poll+0x33/0x1e0
net_rx_action+0x18a/0x2f0

Fixes: 578fcfd26e ("bnxt_en: Let the page pool manage the DMA mapping")
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20240820203415.168178-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-21 17:36:56 -07:00
Jakub Kicinski
58652e2422 Merge branch 'ipv6-fix-possible-uaf-in-output-paths'
Eric Dumazet says:

====================
ipv6: fix possible UAF in output paths

First patch fixes an issue spotted by syzbot, and the two
other patches fix error paths after skb_expand_head()
adoption.
====================

Link: https://patch.msgid.link/20240820160859.3786976-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-21 17:35:51 -07:00
Eric Dumazet
2d5ff7e339 ipv6: prevent possible UAF in ip6_xmit()
If skb_expand_head() returns NULL, skb has been freed
and the associated dst/idev could also have been freed.

We must use rcu_read_lock() to prevent a possible UAF.

Fixes: 0c9f227bee ("ipv6: use skb_expand_head in ip6_xmit")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Vasily Averin <vasily.averin@linux.dev>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20240820160859.3786976-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-21 17:35:49 -07:00
Eric Dumazet
da273b377a ipv6: fix possible UAF in ip6_finish_output2()
If skb_expand_head() returns NULL, skb has been freed
and associated dst/idev could also have been freed.

We need to hold rcu_read_lock() to make sure the dst and
associated idev are alive.

Fixes: 5796015fa9 ("ipv6: allocate enough headroom in ip6_finish_output2()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Vasily Averin <vasily.averin@linux.dev>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20240820160859.3786976-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-21 17:35:49 -07:00
Eric Dumazet
faa389b2fb ipv6: prevent UAF in ip6_send_skb()
syzbot reported an UAF in ip6_send_skb() [1]

After ip6_local_out() has returned, we no longer can safely
dereference rt, unless we hold rcu_read_lock().

A similar issue has been fixed in commit
a688caa34b ("ipv6: take rcu lock in rawv6_send_hdrinc()")

Another potential issue in ip6_finish_output2() is handled in a
separate patch.

[1]
 BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964
Read of size 8 at addr ffff88806dde4858 by task syz.1.380/6530

CPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
  __dump_stack lib/dump_stack.c:93 [inline]
  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
  print_address_description mm/kasan/report.c:377 [inline]
  print_report+0x169/0x550 mm/kasan/report.c:488
  kasan_report+0x143/0x180 mm/kasan/report.c:601
  ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964
  rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588
  rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x1a6/0x270 net/socket.c:745
  sock_write_iter+0x2dd/0x400 net/socket.c:1160
 do_iter_readv_writev+0x60a/0x890
  vfs_writev+0x37c/0xbb0 fs/read_write.c:971
  do_writev+0x1b1/0x350 fs/read_write.c:1018
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f936bf79e79
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79
RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8
 </TASK>

Allocated by task 6530:
  kasan_save_stack mm/kasan/common.c:47 [inline]
  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
  unpoison_slab_object mm/kasan/common.c:312 [inline]
  __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
  kasan_slab_alloc include/linux/kasan.h:201 [inline]
  slab_post_alloc_hook mm/slub.c:3988 [inline]
  slab_alloc_node mm/slub.c:4037 [inline]
  kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044
  dst_alloc+0x12b/0x190 net/core/dst.c:89
  ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670
  make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]
  xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313
  ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257
  rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x1a6/0x270 net/socket.c:745
  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
  ___sys_sendmsg net/socket.c:2651 [inline]
  __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 45:
  kasan_save_stack mm/kasan/common.c:47 [inline]
  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
  kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
  poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
  __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
  kasan_slab_free include/linux/kasan.h:184 [inline]
  slab_free_hook mm/slub.c:2252 [inline]
  slab_free mm/slub.c:4473 [inline]
  kmem_cache_free+0x145/0x350 mm/slub.c:4548
  dst_destroy+0x2ac/0x460 net/core/dst.c:124
  rcu_do_batch kernel/rcu/tree.c:2569 [inline]
  rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2843
  handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
  __do_softirq kernel/softirq.c:588 [inline]
  invoke_softirq kernel/softirq.c:428 [inline]
  __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
  irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
  instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
  sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
  asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702

Last potentially related work creation:
  kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47
  __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541
  __call_rcu_common kernel/rcu/tree.c:3106 [inline]
  call_rcu+0x167/0xa70 kernel/rcu/tree.c:3210
  refdst_drop include/net/dst.h:263 [inline]
  skb_dst_drop include/net/dst.h:275 [inline]
  nf_ct_frag6_queue net/ipv6/netfilter/nf_conntrack_reasm.c:306 [inline]
  nf_ct_frag6_gather+0xb9a/0x2080 net/ipv6/netfilter/nf_conntrack_reasm.c:485
  ipv6_defrag+0x2c8/0x3c0 net/ipv6/netfilter/nf_defrag_ipv6_hooks.c:67
  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
  nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
  nf_hook include/linux/netfilter.h:269 [inline]
  __ip6_local_out+0x6fa/0x800 net/ipv6/output_core.c:143
  ip6_local_out+0x26/0x70 net/ipv6/output_core.c:153
  ip6_send_skb+0x112/0x230 net/ipv6/ip6_output.c:1959
  rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588
  rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x1a6/0x270 net/socket.c:745
  sock_write_iter+0x2dd/0x400 net/socket.c:1160
 do_iter_readv_writev+0x60a/0x890

Fixes: 0625491493 ("ipv6: ip6_push_pending_frames() should increment IPSTATS_MIB_OUTDISCARDS")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20240820160859.3786976-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-21 17:35:49 -07:00
Eric Dumazet
007d4271a5 netpoll: do not export netpoll_poll_[disable|enable]()
netpoll_poll_disable() and netpoll_poll_enable() are only used
from core networking code, there is no need to export them.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240820162053.3870927-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-21 17:31:28 -07:00
Ido Schimmel
f8669d7b5f selftests: mlxsw: ethtool_lanes: Source ethtool lib from correct path
Source the ethtool library from the correct path and avoid the following
error:

./ethtool_lanes.sh: line 14: ./../../../net/forwarding/ethtool_lib.sh: No such file or directory

Fixes: 40d269c000 ("selftests: forwarding: Move several selftests")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/2112faff02e536e1ac14beb4c2be09c9574b90ae.1724150067.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-21 17:20:09 -07:00
Felix Fietkau
b128ed5ab2 udp: fix receiving fraglist GSO packets
When assembling fraglist GSO packets, udp4_gro_complete does not set
skb->csum_start, which makes the extra validation in __udp_gso_segment fail.

Fixes: 89add40066 ("net: drop bad gso csum_start and offset in virtio_net_hdr")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20240819150621.59833-1-nbd@nbd.name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-21 17:15:05 -07:00
Linus Torvalds
872cf28b8d platform-drivers-x86 for v6.11-4
Changes:
 - ISST: Fix an error-handling corner case.
 - platform/surface: aggregator: Minor corner case fix and new HW support.
 
 The following is an automated shortlog grouped by driver:
 
 asus-wmi:
  -  Add quirk for ROG Ally X
 
 ISST:
  -  Fix return value on last invalid resource
 
 surface: aggregator:
  -  Fix warning when controller is destroyed in probe
 
 surface: aggregator_registry:
  -  Add fan and thermal sensor support for Surface Laptop 5
  -  Add support for Surface Laptop 6
  -  Add support for Surface Laptop Go 3
  -  Add support for Surface Laptop Studio 2
  -  Add Support for Surface Pro 10
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Merge tag 'platform-drivers-x86-v6.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Ilpo Järvinen:

 - ISST: Fix an error-handling corner case

 - platform/surface: aggregator: Minor corner case fix and new HW
   support

* tag 'platform-drivers-x86-v6.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: ISST: Fix return value on last invalid resource
  platform/surface: aggregator: Fix warning when controller is destroyed in probe
  platform/surface: aggregator_registry: Add support for Surface Laptop 6
  platform/surface: aggregator_registry: Add fan and thermal sensor support for Surface Laptop 5
  platform/surface: aggregator_registry: Add support for Surface Laptop Studio 2
  platform/surface: aggregator_registry: Add support for Surface Laptop Go 3
  platform/surface: aggregator_registry: Add Support for Surface Pro 10
  platform/x86: asus-wmi: Add quirk for ROG Ally X
2024-08-22 06:34:27 +08:00
Linus Torvalds
5c6154ffd4 Changes since last update:
- Allow large folios on compressed inodes;
 
  - Fix invalid memory accesses if z_erofs_gbuf_growsize()
    partially fails;
 
  - Two minor cleanups.
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Merge tag 'erofs-for-6.11-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs fixes from Gao Xiang:
 "As I mentioned in the merge window pull request, there is a regression
  which could cause system hang due to page migration. The corresponding
  fix landed upstream through MM tree last week (commit 2e6506e1c4:
  "mm/migrate: fix deadlock in migrate_pages_batch() on large folios"),
  therefore large folios can be safely allowed for compressed inodes and
  stress tests have been running on my fleet for over 20 days without
  any regression. Users have explicitly requested this for months, so
  let's allow large folios for EROFS full cases now for wider testing.

  Additionally, there is a fix which addresses invalid memory accesses
  on a failure path triggered by fault injection and two minor cleanups
  to simplify the codebase.

  Summary:

   - Allow large folios on compressed inodes

   - Fix invalid memory accesses if z_erofs_gbuf_growsize() partially
     fails

   - Two minor cleanups"

* tag 'erofs-for-6.11-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails
  erofs: allow large folios for compressed files
  erofs: get rid of check_layout_compatibility()
  erofs: simplify readdir operation
2024-08-22 06:06:09 +08:00
Yang Ruibin
57df60e1f9 thermal/debugfs: Fix the NULL vs IS_ERR() confusion in debugfs_create_dir()
The debugfs_create_dir() return value is never NULL, it is either a
valid pointer or an error one.

Use IS_ERR() to check it.

Fixes: 7ef01f228c ("thermal/debugfs: Add thermal debugfs information for mitigation episodes")
Fixes: 755113d767 ("thermal/debugfs: Add thermal cooling device debugfs information")
Signed-off-by: Yang Ruibin <11162571@vivo.com>
Link: https://patch.msgid.link/20240821075934.12145-1-11162571@vivo.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-08-21 20:38:44 +02:00
Matthew Brost
9e7f305636
drm/xe: Free job before xe_exec_queue_put
Free job depends on job->vm being valid, the last xe_exec_queue_put can
destroy the VM. Prevent UAF by freeing job before xe_exec_queue_put.

Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Jagmeet Randhawa <jagmeet.randhawa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240820202309.1260755-1-matthew.brost@intel.com
(cherry picked from commit 32a42c93b7)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2024-08-21 11:53:15 -04:00
Matthew Brost
dd3e840a33
drm/xe: Drop HW fence pointer to HW fence ctx
The HW fence ctx objects are not ref counted rather tied to the life of
an LRC object. HW fences reference the HW fence ctx, HW fences can
outlive LRCs thus resulting in UAF. Drop the  HW fence pointer to HW
fence ctx rather just store what is needed directly in HW fence.

v2:
 - Fix typo in commit (Ashutosh)
 - Use snprintf (Ashutosh)

Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240815193522.16008-1-matthew.brost@intel.com
(cherry picked from commit 60db6f540a)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2024-08-21 11:53:12 -04:00
Stuart Summers
a6f78359ac
drm/xe: Fix missing workqueue destroy in xe_gt_pagefault
On driver reload we never free up the memory for the pagefault and
access counter workqueues. Add those destroy calls here.

Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c9a951505271dc3a7aee76de7656679f69c11518.1723862633.git.stuart.summers@intel.com
(cherry picked from commit 7586fc52b1)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2024-08-21 11:53:02 -04:00
Harald Freudenberger
b4f5bd60d5 s390/ap: Refine AP bus bindings complete processing
With the rework of the AP bus scan and the introduction of
a bindings complete completion also the timing until the
userspace finally receives a AP bus binding complete uevent
had increased. Unfortunately this event triggers some important
jobs for preparation of KVM guests, for example the modification
of card/queue masks to reassign AP resources to the alternate
AP queue device driver (vfio_ap) which is the precondition
for building mediated devices which may be a precondition for
starting KVM guests using AP resources.

This small fix now triggers the check for binding complete
each time an AP device driver has registered. With this patch
the bindings complete may be posted up to 30s earlier as there
is no need to wait for the next AP bus scan any more.

Fixes: 778412ab91 ("s390/ap: rearm APQNs bindings complete completion")
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Cc: stable@vger.kernel.org
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2024-08-21 16:14:45 +02:00
Alexander Gordeev
32db401965 s390/mm: Pin identity mapping base to zero
SIE instruction performs faster when the virtual address of
SIE block matches the physical one. Pin the identity mapping
base to zero for the benefit of SIE and other instructions
that have similar performance impact. Still, randomize the
base when DEBUG_VM kernel configuration option is enabled.

Suggested-by: Vasily Gorbik <gor@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2024-08-21 16:14:45 +02:00
Alexander Gordeev
a3ca27c405 s390/mm: Prevent lowcore vs identity mapping overlap
The identity mapping position in virtual memory is randomized
together with the kernel mapping. That position can never
overlap with the lowcore even when the lowcore is relocated.

Prevent overlapping with the lowcore to allow independent
positioning of the identity mapping. With the current value
of the alternative lowcore address of 0x70000 the overlap
could happen in case the identity mapping is placed at zero.

This is a prerequisite for uncoupling of randomization base
of kernel image and identity mapping in virtual memory.

Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2024-08-21 16:14:45 +02:00
Jens Axboe
e0ee967630 io_uring/kbuf: sanitize peek buffer setup
Harden the buffer peeking a bit, by adding a sanity check for it having
a valid size. Outside of that, arg->max_len is a size_t, though it's
only ever set to a 32-bit value (as it's governed by MAX_RW_COUNT).
Bump our needed check to a size_t so we know it fits. Finally, cap the
calculated needed iov value to the PEEK_MAX_IMPORT, which is the
maximum number of segments that should be peeked.

Fixes: 35c8711c8f ("io_uring/kbuf: add helpers for getting/peeking multiple buffers")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-08-21 07:16:38 -06:00
Michael Ellerman
d4bc0a264f ata: pata_macio: Use WARN instead of BUG
The overflow/underflow conditions in pata_macio_qc_prep() should never
happen. But if they do there's no need to kill the system entirely, a
WARN and failing the IO request should be sufficient and might allow the
system to keep running.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2024-08-21 14:33:23 +09:00
Michael Ellerman
822c8020ae ata: pata_macio: Fix DMA table overflow
Kolbjørn and Jonáš reported that their 32-bit PowerMacs were crashing
in pata-macio since commit 09fe2bfa6b ("ata: pata_macio: Fix
max_segment_size with PAGE_SIZE == 64K").

For example:

  kernel BUG at drivers/ata/pata_macio.c:544!
  Oops: Exception in kernel mode, sig: 5 [#1]
  BE PAGE_SIZE=4K MMU=Hash SMP NR_CPUS=2 DEBUG_PAGEALLOC PowerMac
  ...
  NIP pata_macio_qc_prep+0xf4/0x190
  LR  pata_macio_qc_prep+0xfc/0x190
  Call Trace:
    0xc1421660 (unreliable)
    ata_qc_issue+0x14c/0x2d4
    __ata_scsi_queuecmd+0x200/0x53c
    ata_scsi_queuecmd+0x50/0xe0
    scsi_queue_rq+0x788/0xb1c
    __blk_mq_issue_directly+0x58/0xf4
    blk_mq_plug_issue_direct+0x8c/0x1b4
    blk_mq_flush_plug_list.part.0+0x584/0x5e0
    __blk_flush_plug+0xf8/0x194
    __submit_bio+0x1b8/0x2e0
    submit_bio_noacct_nocheck+0x230/0x304
    btrfs_work_helper+0x200/0x338
    process_one_work+0x1a8/0x338
    worker_thread+0x364/0x4c0
    kthread+0x100/0x104
    start_kernel_thread+0x10/0x14

That commit increased max_segment_size to 64KB, with the justification
that the SCSI core was already using that size when PAGE_SIZE == 64KB,
and that there was existing logic to split over-sized requests.

However with a sufficiently large request, the splitting logic causes
each sg to be split into two commands in the DMA table, leading to
overflow of the DMA table, triggering the BUG_ON().

With default settings the bug doesn't trigger, because the request size
is limited by max_sectors_kb == 1280, however max_sectors_kb can be
increased, and apparently some distros do that by default using udev
rules.

Fix the bug for 4KB kernels by reverting to the old max_segment_size.

For 64KB kernels the sg_tablesize needs to be halved, to allow for the
possibility that each sg will be split into two.

Fixes: 09fe2bfa6b ("ata: pata_macio: Fix max_segment_size with PAGE_SIZE == 64K")
Cc: stable@vger.kernel.org # v6.10+
Reported-by: Kolbjørn Barmen <linux-ppc@kolla.no>
Closes: https://lore.kernel.org/all/62d248bb-e97a-25d2-bcf2-9160c518cae5@kolla.no/
Reported-by: Jonáš Vidra <vidra@ufal.mff.cuni.cz>
Closes: https://lore.kernel.org/all/3b6441b8-06e6-45da-9e55-f92f2c86933e@ufal.mff.cuni.cz/
Tested-by: Kolbjørn Barmen <linux-ppc@kolla.no>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2024-08-21 14:31:48 +09:00
Alex Deucher
9cead81eff drm/amdgpu: fix eGPU hotplug regression
The driver needs to wait for the on board firmware
to finish its initialization before probing the card.
Commit 959056982a ("drm/amdgpu: Fix discovery initialization failure during pci rescan")
switched from using msleep() to using usleep_range() which
seems to have caused init failures on some navi1x boards. Switch
back to msleep().

Fixes: 959056982a ("drm/amdgpu: Fix discovery initialization failure during pci rescan")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3559
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3500
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Ma Jun <Jun.Ma2@amd.com>
(cherry picked from commit c69b07f7bb)
Cc: stable@vger.kernel.org # 6.10.x
2024-08-20 23:07:11 -04:00