Date
July 10, 2025, 11:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.236849] ================================================================== [ 18.236914] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 18.237059] Read of size 1 at addr fff00000c6356818 by task kunit_try_catch/257 [ 18.237144] [ 18.237181] CPU: 0 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.237401] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.237443] Hardware name: linux,dummy-virt (DT) [ 18.237477] Call trace: [ 18.237582] show_stack+0x20/0x38 (C) [ 18.237646] dump_stack_lvl+0x8c/0xd0 [ 18.237708] print_report+0x118/0x608 [ 18.237760] kasan_report+0xdc/0x128 [ 18.237930] __asan_report_load1_noabort+0x20/0x30 [ 18.238071] memcmp+0x198/0x1d8 [ 18.238162] kasan_memcmp+0x16c/0x300 [ 18.238283] kunit_try_run_case+0x170/0x3f0 [ 18.238337] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.238400] kthread+0x328/0x630 [ 18.238447] ret_from_fork+0x10/0x20 [ 18.238879] [ 18.238925] Allocated by task 257: [ 18.238998] kasan_save_stack+0x3c/0x68 [ 18.239132] kasan_save_track+0x20/0x40 [ 18.239199] kasan_save_alloc_info+0x40/0x58 [ 18.239337] __kasan_kmalloc+0xd4/0xd8 [ 18.239405] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.239538] kasan_memcmp+0xbc/0x300 [ 18.239580] kunit_try_run_case+0x170/0x3f0 [ 18.239790] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.239985] kthread+0x328/0x630 [ 18.240065] ret_from_fork+0x10/0x20 [ 18.240212] [ 18.240273] The buggy address belongs to the object at fff00000c6356800 [ 18.240273] which belongs to the cache kmalloc-32 of size 32 [ 18.240438] The buggy address is located 0 bytes to the right of [ 18.240438] allocated 24-byte region [fff00000c6356800, fff00000c6356818) [ 18.240595] [ 18.240636] The buggy address belongs to the physical page: [ 18.240672] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106356 [ 18.240943] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.241116] page_type: f5(slab) [ 18.241182] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 18.241265] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 18.241378] page dumped because: kasan: bad access detected [ 18.241452] [ 18.241503] Memory state around the buggy address: [ 18.241628] fff00000c6356700: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 18.241760] fff00000c6356780: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 18.241808] >fff00000c6356800: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.241853] ^ [ 18.241916] fff00000c6356880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.242101] fff00000c6356900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.242288] ==================================================================
[ 14.572463] ================================================================== [ 14.573492] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 14.573702] Read of size 1 at addr ffff8881039ba618 by task kunit_try_catch/275 [ 14.573920] [ 14.574006] CPU: 1 UID: 0 PID: 275 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.574048] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.574060] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.574080] Call Trace: [ 14.574092] <TASK> [ 14.574106] dump_stack_lvl+0x73/0xb0 [ 14.574133] print_report+0xd1/0x650 [ 14.574156] ? __virt_addr_valid+0x1db/0x2d0 [ 14.574180] ? memcmp+0x1b4/0x1d0 [ 14.574198] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.574221] ? memcmp+0x1b4/0x1d0 [ 14.574240] kasan_report+0x141/0x180 [ 14.574261] ? memcmp+0x1b4/0x1d0 [ 14.574284] __asan_report_load1_noabort+0x18/0x20 [ 14.574309] memcmp+0x1b4/0x1d0 [ 14.574328] kasan_memcmp+0x18f/0x390 [ 14.574373] ? trace_hardirqs_on+0x37/0xe0 [ 14.574406] ? __pfx_kasan_memcmp+0x10/0x10 [ 14.574427] ? finish_task_switch.isra.0+0x153/0x700 [ 14.574450] ? __switch_to+0x47/0xf50 [ 14.574477] ? __pfx_read_tsc+0x10/0x10 [ 14.574498] ? ktime_get_ts64+0x86/0x230 [ 14.574529] kunit_try_run_case+0x1a5/0x480 [ 14.574554] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.574577] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.574602] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.574626] ? __kthread_parkme+0x82/0x180 [ 14.574647] ? preempt_count_sub+0x50/0x80 [ 14.574670] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.574695] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.574720] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.574752] kthread+0x337/0x6f0 [ 14.574770] ? trace_preempt_on+0x20/0xc0 [ 14.574792] ? __pfx_kthread+0x10/0x10 [ 14.574813] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.574836] ? calculate_sigpending+0x7b/0xa0 [ 14.574860] ? __pfx_kthread+0x10/0x10 [ 14.574881] ret_from_fork+0x116/0x1d0 [ 14.574899] ? __pfx_kthread+0x10/0x10 [ 14.574920] ret_from_fork_asm+0x1a/0x30 [ 14.574950] </TASK> [ 14.574960] [ 14.588827] Allocated by task 275: [ 14.589146] kasan_save_stack+0x45/0x70 [ 14.589592] kasan_save_track+0x18/0x40 [ 14.589858] kasan_save_alloc_info+0x3b/0x50 [ 14.590007] __kasan_kmalloc+0xb7/0xc0 [ 14.590138] __kmalloc_cache_noprof+0x189/0x420 [ 14.590294] kasan_memcmp+0xb7/0x390 [ 14.590447] kunit_try_run_case+0x1a5/0x480 [ 14.590691] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.591133] kthread+0x337/0x6f0 [ 14.591264] ret_from_fork+0x116/0x1d0 [ 14.591470] ret_from_fork_asm+0x1a/0x30 [ 14.591768] [ 14.591842] The buggy address belongs to the object at ffff8881039ba600 [ 14.591842] which belongs to the cache kmalloc-32 of size 32 [ 14.592339] The buggy address is located 0 bytes to the right of [ 14.592339] allocated 24-byte region [ffff8881039ba600, ffff8881039ba618) [ 14.592862] [ 14.592939] The buggy address belongs to the physical page: [ 14.593191] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039ba [ 14.593552] flags: 0x200000000000000(node=0|zone=2) [ 14.593826] page_type: f5(slab) [ 14.593993] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 14.594224] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 14.594646] page dumped because: kasan: bad access detected [ 14.595009] [ 14.595097] Memory state around the buggy address: [ 14.595258] ffff8881039ba500: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 14.595701] ffff8881039ba580: 00 00 00 04 fc fc fc fc 00 00 07 fc fc fc fc fc [ 14.596069] >ffff8881039ba600: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.596377] ^ [ 14.596650] ffff8881039ba680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.596951] ffff8881039ba700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.597231] ==================================================================