Date
June 2, 2025, 2:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.053935] ================================================================== [ 22.054717] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 22.055423] Read of size 1 at addr fff00000c6cfdb58 by task kunit_try_catch/244 [ 22.056076] [ 22.056434] CPU: 0 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 22.056653] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.056720] Hardware name: linux,dummy-virt (DT) [ 22.056821] Call trace: [ 22.056883] dump_backtrace+0x9c/0x128 [ 22.057019] show_stack+0x20/0x38 [ 22.057122] dump_stack_lvl+0x8c/0xd0 [ 22.057249] print_report+0x118/0x5f0 [ 22.057359] kasan_report+0xdc/0x128 [ 22.057447] __asan_report_load1_noabort+0x20/0x30 [ 22.057549] memcmp+0x198/0x1d8 [ 22.057628] kasan_memcmp+0x170/0x310 [ 22.057718] kunit_try_run_case+0x170/0x3f0 [ 22.057806] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.057910] kthread+0x24c/0x2d0 [ 22.057993] ret_from_fork+0x10/0x20 [ 22.058132] [ 22.064253] Allocated by task 244: [ 22.064752] kasan_save_stack+0x3c/0x68 [ 22.065187] kasan_save_track+0x20/0x40 [ 22.066068] kasan_save_alloc_info+0x40/0x58 [ 22.066714] __kasan_kmalloc+0xd4/0xd8 [ 22.067650] __kmalloc_cache_noprof+0x154/0x320 [ 22.068086] kasan_memcmp+0xbc/0x310 [ 22.068383] kunit_try_run_case+0x170/0x3f0 [ 22.068647] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.068936] kthread+0x24c/0x2d0 [ 22.069160] ret_from_fork+0x10/0x20 [ 22.069419] [ 22.069764] The buggy address belongs to the object at fff00000c6cfdb40 [ 22.069764] which belongs to the cache kmalloc-32 of size 32 [ 22.070995] The buggy address is located 0 bytes to the right of [ 22.070995] allocated 24-byte region [fff00000c6cfdb40, fff00000c6cfdb58) [ 22.072528] [ 22.072957] The buggy address belongs to the physical page: [ 22.073316] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106cfd [ 22.074002] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.074741] page_type: f5(slab) [ 22.075175] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 22.075849] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 22.076935] page dumped because: kasan: bad access detected [ 22.077664] [ 22.077961] Memory state around the buggy address: [ 22.078492] fff00000c6cfda00: 00 00 07 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 22.079605] fff00000c6cfda80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 22.080186] >fff00000c6cfdb00: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 22.080866] ^ [ 22.081465] fff00000c6cfdb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.082085] fff00000c6cfdc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.082723] ==================================================================
[ 14.005336] ================================================================== [ 14.005714] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 14.005966] Read of size 1 at addr ffff888102632798 by task kunit_try_catch/262 [ 14.006150] [ 14.006214] CPU: 0 UID: 0 PID: 262 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 14.006256] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.006268] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.006289] Call Trace: [ 14.006301] <TASK> [ 14.006317] dump_stack_lvl+0x73/0xb0 [ 14.006558] print_report+0xd1/0x640 [ 14.006586] ? __virt_addr_valid+0x1db/0x2d0 [ 14.006611] ? memcmp+0x1b4/0x1d0 [ 14.006631] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.006653] ? memcmp+0x1b4/0x1d0 [ 14.006688] kasan_report+0x140/0x180 [ 14.006712] ? memcmp+0x1b4/0x1d0 [ 14.006737] __asan_report_load1_noabort+0x18/0x20 [ 14.006758] memcmp+0x1b4/0x1d0 [ 14.006780] kasan_memcmp+0x190/0x390 [ 14.006802] ? __pfx_kasan_memcmp+0x10/0x10 [ 14.006822] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 14.006851] ? __pfx_kasan_memcmp+0x10/0x10 [ 14.006877] kunit_try_run_case+0x1a6/0x480 [ 14.006900] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.006919] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 14.006939] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.006963] ? __kthread_parkme+0x82/0x160 [ 14.006983] ? preempt_count_sub+0x50/0x80 [ 14.007006] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.007025] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.007050] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.007074] kthread+0x257/0x310 [ 14.007092] ? __pfx_kthread+0x10/0x10 [ 14.007111] ret_from_fork+0x41/0x80 [ 14.007131] ? __pfx_kthread+0x10/0x10 [ 14.007149] ret_from_fork_asm+0x1a/0x30 [ 14.007179] </TASK> [ 14.007191] [ 14.014508] Allocated by task 262: [ 14.015178] kasan_save_stack+0x45/0x70 [ 14.015434] kasan_save_track+0x18/0x40 [ 14.016329] kasan_save_alloc_info+0x3b/0x50 [ 14.016611] __kasan_kmalloc+0xb7/0xc0 [ 14.016789] __kmalloc_cache_noprof+0x168/0x350 [ 14.017015] kasan_memcmp+0xb8/0x390 [ 14.017185] kunit_try_run_case+0x1a6/0x480 [ 14.017312] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.017434] kthread+0x257/0x310 [ 14.017605] ret_from_fork+0x41/0x80 [ 14.017784] ret_from_fork_asm+0x1a/0x30 [ 14.018008] [ 14.018131] The buggy address belongs to the object at ffff888102632780 [ 14.018131] which belongs to the cache kmalloc-32 of size 32 [ 14.018502] The buggy address is located 0 bytes to the right of [ 14.018502] allocated 24-byte region [ffff888102632780, ffff888102632798) [ 14.018798] [ 14.018853] The buggy address belongs to the physical page: [ 14.018993] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102632 [ 14.019385] flags: 0x200000000000000(node=0|zone=2) [ 14.019603] page_type: f5(slab) [ 14.019757] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 14.020106] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 14.020602] page dumped because: kasan: bad access detected [ 14.020795] [ 14.020913] Memory state around the buggy address: [ 14.021072] ffff888102632680: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 14.021358] ffff888102632700: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 14.021580] >ffff888102632780: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.021803] ^ [ 14.022026] ffff888102632800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.022363] ffff888102632880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.022589] ==================================================================