Date
July 2, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.395235] ================================================================== [ 20.395299] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 20.395357] Read of size 1 at addr fff00000c58a9198 by task kunit_try_catch/257 [ 20.395430] [ 20.395471] CPU: 0 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.395569] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.396153] Hardware name: linux,dummy-virt (DT) [ 20.396207] Call trace: [ 20.396251] show_stack+0x20/0x38 (C) [ 20.396402] dump_stack_lvl+0x8c/0xd0 [ 20.396906] print_report+0x118/0x608 [ 20.397995] kasan_report+0xdc/0x128 [ 20.398079] __asan_report_load1_noabort+0x20/0x30 [ 20.398183] memcmp+0x198/0x1d8 [ 20.398312] kasan_memcmp+0x16c/0x300 [ 20.398371] kunit_try_run_case+0x170/0x3f0 [ 20.398594] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.398794] kthread+0x328/0x630 [ 20.399064] ret_from_fork+0x10/0x20 [ 20.399224] [ 20.399315] Allocated by task 257: [ 20.399390] kasan_save_stack+0x3c/0x68 [ 20.399530] kasan_save_track+0x20/0x40 [ 20.399671] kasan_save_alloc_info+0x40/0x58 [ 20.399748] __kasan_kmalloc+0xd4/0xd8 [ 20.399939] __kmalloc_cache_noprof+0x16c/0x3c0 [ 20.400104] kasan_memcmp+0xbc/0x300 [ 20.400257] kunit_try_run_case+0x170/0x3f0 [ 20.400483] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.400699] kthread+0x328/0x630 [ 20.400831] ret_from_fork+0x10/0x20 [ 20.401163] [ 20.401294] The buggy address belongs to the object at fff00000c58a9180 [ 20.401294] which belongs to the cache kmalloc-32 of size 32 [ 20.401525] The buggy address is located 0 bytes to the right of [ 20.401525] allocated 24-byte region [fff00000c58a9180, fff00000c58a9198) [ 20.401783] [ 20.401823] The buggy address belongs to the physical page: [ 20.401875] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1058a9 [ 20.402097] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.402274] page_type: f5(slab) [ 20.402590] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 20.402760] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 20.402875] page dumped because: kasan: bad access detected [ 20.403134] [ 20.403560] Memory state around the buggy address: [ 20.403763] fff00000c58a9080: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 20.404007] fff00000c58a9100: 00 00 00 04 fc fc fc fc 00 00 07 fc fc fc fc fc [ 20.404180] >fff00000c58a9180: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.404392] ^ [ 20.404643] fff00000c58a9200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.404916] fff00000c58a9280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.405029] ==================================================================
[ 13.321209] ================================================================== [ 13.322367] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 13.323048] Read of size 1 at addr ffff8881031254d8 by task kunit_try_catch/276 [ 13.323742] [ 13.323953] CPU: 0 UID: 0 PID: 276 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.324001] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.324014] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.324036] Call Trace: [ 13.324048] <TASK> [ 13.324067] dump_stack_lvl+0x73/0xb0 [ 13.324096] print_report+0xd1/0x650 [ 13.324153] ? __virt_addr_valid+0x1db/0x2d0 [ 13.324177] ? memcmp+0x1b4/0x1d0 [ 13.324195] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.324218] ? memcmp+0x1b4/0x1d0 [ 13.324235] kasan_report+0x141/0x180 [ 13.324256] ? memcmp+0x1b4/0x1d0 [ 13.324277] __asan_report_load1_noabort+0x18/0x20 [ 13.324301] memcmp+0x1b4/0x1d0 [ 13.324320] kasan_memcmp+0x18f/0x390 [ 13.324339] ? trace_hardirqs_on+0x37/0xe0 [ 13.324376] ? __pfx_kasan_memcmp+0x10/0x10 [ 13.324396] ? finish_task_switch.isra.0+0x153/0x700 [ 13.324418] ? __switch_to+0x47/0xf50 [ 13.324447] ? __pfx_read_tsc+0x10/0x10 [ 13.324468] ? ktime_get_ts64+0x86/0x230 [ 13.324492] kunit_try_run_case+0x1a5/0x480 [ 13.324517] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.324539] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.324562] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.324598] ? __kthread_parkme+0x82/0x180 [ 13.324619] ? preempt_count_sub+0x50/0x80 [ 13.324641] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.324664] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.324686] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.324709] kthread+0x337/0x6f0 [ 13.324727] ? trace_preempt_on+0x20/0xc0 [ 13.324748] ? __pfx_kthread+0x10/0x10 [ 13.324768] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.324789] ? calculate_sigpending+0x7b/0xa0 [ 13.324812] ? __pfx_kthread+0x10/0x10 [ 13.324833] ret_from_fork+0x116/0x1d0 [ 13.324850] ? __pfx_kthread+0x10/0x10 [ 13.324870] ret_from_fork_asm+0x1a/0x30 [ 13.324901] </TASK> [ 13.324912] [ 13.338824] Allocated by task 276: [ 13.339221] kasan_save_stack+0x45/0x70 [ 13.339697] kasan_save_track+0x18/0x40 [ 13.339874] kasan_save_alloc_info+0x3b/0x50 [ 13.340381] __kasan_kmalloc+0xb7/0xc0 [ 13.340814] __kmalloc_cache_noprof+0x189/0x420 [ 13.341042] kasan_memcmp+0xb7/0x390 [ 13.341413] kunit_try_run_case+0x1a5/0x480 [ 13.341890] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.342211] kthread+0x337/0x6f0 [ 13.342554] ret_from_fork+0x116/0x1d0 [ 13.342846] ret_from_fork_asm+0x1a/0x30 [ 13.343224] [ 13.343298] The buggy address belongs to the object at ffff8881031254c0 [ 13.343298] which belongs to the cache kmalloc-32 of size 32 [ 13.343653] The buggy address is located 0 bytes to the right of [ 13.343653] allocated 24-byte region [ffff8881031254c0, ffff8881031254d8) [ 13.344970] [ 13.345170] The buggy address belongs to the physical page: [ 13.345469] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103125 [ 13.346148] flags: 0x200000000000000(node=0|zone=2) [ 13.346650] page_type: f5(slab) [ 13.346857] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 13.347379] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 13.347668] page dumped because: kasan: bad access detected [ 13.348226] [ 13.348471] Memory state around the buggy address: [ 13.349153] ffff888103125380: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 13.349796] ffff888103125400: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 13.350235] >ffff888103125480: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 13.350464] ^ [ 13.350879] ffff888103125500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.351627] ffff888103125580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.352369] ==================================================================