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2a4a62a14b
syscall_stub_data() expects the data_count parameter to be the number of
longs, not bytes.
==================================================================
BUG: KASAN: stack-out-of-bounds in syscall_stub_data+0x70/0xe0
Read of size 128 at addr 000000006411f6f0 by task swapper/1
CPU: 0 PID: 1 Comm: swapper Not tainted 5.18.0+ #18
Call Trace:
show_stack.cold+0x166/0x2a7
__dump_stack+0x3a/0x43
dump_stack_lvl+0x1f/0x27
print_report.cold+0xdb/0xf81
kasan_report+0x119/0x1f0
kasan_check_range+0x3a3/0x440
memcpy+0x52/0x140
syscall_stub_data+0x70/0xe0
write_ldt_entry+0xac/0x190
init_new_ldt+0x515/0x960
init_new_context+0x2c4/0x4d0
mm_init.constprop.0+0x5ed/0x760
mm_alloc+0x118/0x170
0x60033f48
do_one_initcall+0x1d7/0x860
0x60003e7b
kernel_init+0x6e/0x3d4
new_thread_handler+0x1e7/0x2c0
The buggy address belongs to stack of task swapper/1
and is located at offset 64 in frame:
init_new_ldt+0x0/0x960
This frame has 2 objects:
[32, 40) 'addr'
[64, 80) 'desc'
==================================================================
Fixes:
|
||
|---|---|---|
| .. | ||
| asm | ||
| os-Linux | ||
| shared/sysdep | ||
| vdso | ||
| bugs_32.c | ||
| bugs_64.c | ||
| checksum_32.S | ||
| delay.c | ||
| elfcore.c | ||
| fault.c | ||
| Kconfig | ||
| ldt.c | ||
| Makefile | ||
| mem_32.c | ||
| mem_64.c | ||
| ptrace_32.c | ||
| ptrace_64.c | ||
| ptrace_user.c | ||
| setjmp_32.S | ||
| setjmp_64.S | ||
| signal.c | ||
| stub_32.S | ||
| stub_64.S | ||
| stub_segv.c | ||
| sys_call_table_32.c | ||
| sys_call_table_64.c | ||
| syscalls_32.c | ||
| syscalls_64.c | ||
| sysrq_32.c | ||
| sysrq_64.c | ||
| tls_32.c | ||
| tls_64.c | ||
| user-offsets.c | ||