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4aa9340584
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Baoquan He 4aa9340584 s390/kexec: fix memory leak of ipl report buffer 
unreferenced object 0x38000195000 (size 4096):
  comm "kexec", pid 8548, jiffies 4294953647 (age 32443.270s)
  hex dump (first 32 bytes):
    00 00 00 c8 20 00 00 00 00 00 00 c0 02 80 00 00  .... ...........
    40 40 40 40 40 40 40 40 00 00 00 00 00 00 00 00  @@@@@@@@........
  backtrace:
    [<0000000011a2f199>] __vmalloc_node_range+0xc0/0x140
    [<0000000081fa2752>] vzalloc+0x5a/0x70
    [<0000000063a4c92d>] ipl_report_finish+0x2c/0x180
    [<00000000553304da>] kexec_file_add_ipl_report+0xf4/0x150
    [<00000000862d033f>] kexec_file_add_components+0x124/0x160
    [<000000000d2717bb>] arch_kexec_kernel_image_load+0x62/0x90
    [<000000002e0373b6>] kimage_file_alloc_init+0x1aa/0x2e0
    [<0000000060f2d14f>] __do_sys_kexec_file_load+0x17c/0x2c0
    [<000000008c86fe5a>] __s390x_sys_kexec_file_load+0x40/0x50
    [<000000001fdb9dac>] __do_syscall+0x1bc/0x1f0
    [<000000003ee4258d>] system_call+0x78/0xa0

Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Philipp Rudo <prudo@redhat.com>
Fixes: 99feaa717e ("s390/kexec_file: Create ipl report and pass to next kernel")
Cc: <stable@vger.kernel.org> # v5.2: 20c76e242e: s390/kexec: fix return code handling
Cc: <stable@vger.kernel.org> # v5.2
Link: https://lore.kernel.org/r/20211116033101.GD21646@MiWiFi-R3L-srv
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2021-11-18 17:50:07 +01:00
..
alpha Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
arc Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
arm ARM fixes for 5.16-rc1: 2021-11-14 11:30:50 -08:00
arm64 New x86 features: 2021-11-13 10:01:10 -08:00
csky asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
h8300 Kbuild updates for v5.16 2021-11-08 09:15:45 -08:00
hexagon sched: Add wrapper for get_wchan() to keep task blocked 2021-10-15 11:25:14 +02:00
ia64 asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
m68k Fixes include: 2021-11-11 14:22:05 -08:00
microblaze asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
mips Devicetree fixes for v5.16, take 1: 2021-11-14 11:11:51 -08:00
nds32 Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
nios2 asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
openrisc Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
parisc parisc/entry: fix trace test in syscall exit path 2021-11-13 22:10:56 +01:00
powerpc mm/migrate.c: remove MIGRATE_PFN_LOCKED 2021-11-11 09:34:35 -08:00
riscv RISC-V Patches for the 5.16 Merge Window, Part 1 2021-11-13 09:15:42 -08:00
s390 s390/kexec: fix memory leak of ipl report buffer 2021-11-18 17:50:07 +01:00
sh arch/sh updates for 5.16 2021-11-14 11:37:49 -08:00
sparc Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
um Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
x86 A single fix for static calls to make the trampoline patching more robust 2021-11-14 10:30:17 -08:00
xtensa Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
.gitignore
Kconfig Tracing updates for 5.16: 2021-11-01 20:05:19 -07:00