Date
July 8, 2025, 7:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.585626] ================================================================== [ 21.585951] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 21.586047] Read of size 1 at addr fff00000c571ef58 by task kunit_try_catch/257 [ 21.586109] [ 21.586145] CPU: 0 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 21.586520] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.586611] Hardware name: linux,dummy-virt (DT) [ 21.586674] Call trace: [ 21.586702] show_stack+0x20/0x38 (C) [ 21.586897] dump_stack_lvl+0x8c/0xd0 [ 21.586953] print_report+0x118/0x608 [ 21.587025] kasan_report+0xdc/0x128 [ 21.587233] __asan_report_load1_noabort+0x20/0x30 [ 21.587424] memcmp+0x198/0x1d8 [ 21.587479] kasan_memcmp+0x16c/0x300 [ 21.587664] kunit_try_run_case+0x170/0x3f0 [ 21.587775] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.588006] kthread+0x328/0x630 [ 21.588261] ret_from_fork+0x10/0x20 [ 21.588462] [ 21.588585] Allocated by task 257: [ 21.588677] kasan_save_stack+0x3c/0x68 [ 21.588766] kasan_save_track+0x20/0x40 [ 21.589011] kasan_save_alloc_info+0x40/0x58 [ 21.589182] __kasan_kmalloc+0xd4/0xd8 [ 21.589369] __kmalloc_cache_noprof+0x16c/0x3c0 [ 21.589601] kasan_memcmp+0xbc/0x300 [ 21.589646] kunit_try_run_case+0x170/0x3f0 [ 21.589902] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.590210] kthread+0x328/0x630 [ 21.590385] ret_from_fork+0x10/0x20 [ 21.590477] [ 21.590608] The buggy address belongs to the object at fff00000c571ef40 [ 21.590608] which belongs to the cache kmalloc-32 of size 32 [ 21.590996] The buggy address is located 0 bytes to the right of [ 21.590996] allocated 24-byte region [fff00000c571ef40, fff00000c571ef58) [ 21.591236] [ 21.591364] The buggy address belongs to the physical page: [ 21.591494] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10571e [ 21.591588] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.591640] page_type: f5(slab) [ 21.592005] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 21.592274] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 21.592412] page dumped because: kasan: bad access detected [ 21.592470] [ 21.592604] Memory state around the buggy address: [ 21.592663] fff00000c571ee00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 21.593143] fff00000c571ee80: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 21.593307] >fff00000c571ef00: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 21.593529] ^ [ 21.593885] fff00000c571ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.594071] fff00000c571f000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.594116] ==================================================================
[ 14.905682] ================================================================== [ 14.906470] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 14.906752] Read of size 1 at addr ffff88810261dbd8 by task kunit_try_catch/274 [ 14.907081] [ 14.907494] CPU: 1 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.907546] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.907801] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.907827] Call Trace: [ 14.907840] <TASK> [ 14.907857] dump_stack_lvl+0x73/0xb0 [ 14.907886] print_report+0xd1/0x650 [ 14.907911] ? __virt_addr_valid+0x1db/0x2d0 [ 14.907934] ? memcmp+0x1b4/0x1d0 [ 14.907951] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.907976] ? memcmp+0x1b4/0x1d0 [ 14.907994] kasan_report+0x141/0x180 [ 14.908015] ? memcmp+0x1b4/0x1d0 [ 14.908038] __asan_report_load1_noabort+0x18/0x20 [ 14.908123] memcmp+0x1b4/0x1d0 [ 14.908143] kasan_memcmp+0x18f/0x390 [ 14.908164] ? trace_hardirqs_on+0x37/0xe0 [ 14.908187] ? __pfx_kasan_memcmp+0x10/0x10 [ 14.908208] ? __kasan_check_write+0x18/0x20 [ 14.908226] ? queued_spin_lock_slowpath+0x116/0xb40 [ 14.908252] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 14.908276] ? __pfx_read_tsc+0x10/0x10 [ 14.908296] ? ktime_get_ts64+0x86/0x230 [ 14.908320] kunit_try_run_case+0x1a5/0x480 [ 14.908344] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.908365] ? _raw_spin_lock_irqsave+0xf9/0x100 [ 14.908386] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.908410] ? __kthread_parkme+0x82/0x180 [ 14.908430] ? preempt_count_sub+0x50/0x80 [ 14.908454] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.908478] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.908501] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.908523] kthread+0x337/0x6f0 [ 14.908542] ? trace_preempt_on+0x20/0xc0 [ 14.908563] ? __pfx_kthread+0x10/0x10 [ 14.908583] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.908604] ? calculate_sigpending+0x7b/0xa0 [ 14.908627] ? __pfx_kthread+0x10/0x10 [ 14.908648] ret_from_fork+0x116/0x1d0 [ 14.908666] ? __pfx_kthread+0x10/0x10 [ 14.908686] ret_from_fork_asm+0x1a/0x30 [ 14.908718] </TASK> [ 14.908730] [ 14.922062] Allocated by task 274: [ 14.922311] kasan_save_stack+0x45/0x70 [ 14.922587] kasan_save_track+0x18/0x40 [ 14.922760] kasan_save_alloc_info+0x3b/0x50 [ 14.922969] __kasan_kmalloc+0xb7/0xc0 [ 14.923490] __kmalloc_cache_noprof+0x189/0x420 [ 14.923684] kasan_memcmp+0xb7/0x390 [ 14.923974] kunit_try_run_case+0x1a5/0x480 [ 14.924371] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.924879] kthread+0x337/0x6f0 [ 14.925060] ret_from_fork+0x116/0x1d0 [ 14.925420] ret_from_fork_asm+0x1a/0x30 [ 14.925670] [ 14.925766] The buggy address belongs to the object at ffff88810261dbc0 [ 14.925766] which belongs to the cache kmalloc-32 of size 32 [ 14.926634] The buggy address is located 0 bytes to the right of [ 14.926634] allocated 24-byte region [ffff88810261dbc0, ffff88810261dbd8) [ 14.927571] [ 14.927679] The buggy address belongs to the physical page: [ 14.927884] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10261d [ 14.928674] flags: 0x200000000000000(node=0|zone=2) [ 14.928909] page_type: f5(slab) [ 14.929271] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 14.929823] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 14.930441] page dumped because: kasan: bad access detected [ 14.930929] [ 14.931053] Memory state around the buggy address: [ 14.931505] ffff88810261da80: 00 00 07 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 14.931822] ffff88810261db00: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 14.932585] >ffff88810261db80: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 14.933012] ^ [ 14.933529] ffff88810261dc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.933955] ffff88810261dc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.934329] ==================================================================