Date
July 8, 2025, 4:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.987999] ================================================================== [ 19.988061] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 19.988121] Read of size 1 at addr fff00000c6e54858 by task kunit_try_catch/259 [ 19.988550] [ 19.988617] CPU: 0 UID: 0 PID: 259 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT [ 19.988753] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.988848] Hardware name: linux,dummy-virt (DT) [ 19.988894] Call trace: [ 19.988918] show_stack+0x20/0x38 (C) [ 19.988977] dump_stack_lvl+0x8c/0xd0 [ 19.989029] print_report+0x118/0x608 [ 19.989197] kasan_report+0xdc/0x128 [ 19.989423] __asan_report_load1_noabort+0x20/0x30 [ 19.989616] memcmp+0x198/0x1d8 [ 19.989714] kasan_memcmp+0x16c/0x300 [ 19.990014] kunit_try_run_case+0x170/0x3f0 [ 19.990188] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.990313] kthread+0x328/0x630 [ 19.990500] ret_from_fork+0x10/0x20 [ 19.990662] [ 19.990685] Allocated by task 259: [ 19.991044] kasan_save_stack+0x3c/0x68 [ 19.991128] kasan_save_track+0x20/0x40 [ 19.991261] kasan_save_alloc_info+0x40/0x58 [ 19.991318] __kasan_kmalloc+0xd4/0xd8 [ 19.991386] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.991431] kasan_memcmp+0xbc/0x300 [ 19.991470] kunit_try_run_case+0x170/0x3f0 [ 19.991561] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.991615] kthread+0x328/0x630 [ 19.991670] ret_from_fork+0x10/0x20 [ 19.991708] [ 19.991752] The buggy address belongs to the object at fff00000c6e54840 [ 19.991752] which belongs to the cache kmalloc-32 of size 32 [ 19.991813] The buggy address is located 0 bytes to the right of [ 19.991813] allocated 24-byte region [fff00000c6e54840, fff00000c6e54858) [ 19.991890] [ 19.991914] The buggy address belongs to the physical page: [ 19.991948] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106e54 [ 19.992021] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.992075] page_type: f5(slab) [ 19.992115] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 19.992169] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 19.992347] page dumped because: kasan: bad access detected [ 19.992775] [ 19.992862] Memory state around the buggy address: [ 19.992942] fff00000c6e54700: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 19.993543] fff00000c6e54780: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 19.993844] >fff00000c6e54800: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 19.993922] ^ [ 19.993979] fff00000c6e54880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.994040] fff00000c6e54900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.994107] ==================================================================
[ 13.192713] ================================================================== [ 13.193380] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 13.193885] Read of size 1 at addr ffff888103603fd8 by task kunit_try_catch/277 [ 13.194147] [ 13.194274] CPU: 0 UID: 0 PID: 277 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT(voluntary) [ 13.194325] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.194338] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.194361] Call Trace: [ 13.194374] <TASK> [ 13.194391] dump_stack_lvl+0x73/0xb0 [ 13.194419] print_report+0xd1/0x650 [ 13.194445] ? __virt_addr_valid+0x1db/0x2d0 [ 13.194469] ? memcmp+0x1b4/0x1d0 [ 13.194489] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.194520] ? memcmp+0x1b4/0x1d0 [ 13.194540] kasan_report+0x141/0x180 [ 13.194563] ? memcmp+0x1b4/0x1d0 [ 13.194588] __asan_report_load1_noabort+0x18/0x20 [ 13.194610] memcmp+0x1b4/0x1d0 [ 13.194631] kasan_memcmp+0x18f/0x390 [ 13.194652] ? trace_hardirqs_on+0x37/0xe0 [ 13.194678] ? __pfx_kasan_memcmp+0x10/0x10 [ 13.194699] ? finish_task_switch.isra.0+0x153/0x700 [ 13.194724] ? __switch_to+0x5d9/0xf60 [ 13.194746] ? dequeue_task_fair+0x166/0x4e0 [ 13.194774] ? __pfx_read_tsc+0x10/0x10 [ 13.194794] ? ktime_get_ts64+0x86/0x230 [ 13.194820] kunit_try_run_case+0x1a5/0x480 [ 13.194881] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.194902] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.194927] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.194952] ? __kthread_parkme+0x82/0x180 [ 13.194975] ? preempt_count_sub+0x50/0x80 [ 13.194999] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.195020] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.195045] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.195068] kthread+0x337/0x6f0 [ 13.195086] ? trace_preempt_on+0x20/0xc0 [ 13.195109] ? __pfx_kthread+0x10/0x10 [ 13.195128] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.195151] ? calculate_sigpending+0x7b/0xa0 [ 13.195173] ? __pfx_kthread+0x10/0x10 [ 13.195192] ret_from_fork+0x41/0x80 [ 13.195213] ? __pfx_kthread+0x10/0x10 [ 13.195232] ret_from_fork_asm+0x1a/0x30 [ 13.195263] </TASK> [ 13.195276] [ 13.203187] Allocated by task 277: [ 13.203327] kasan_save_stack+0x45/0x70 [ 13.203541] kasan_save_track+0x18/0x40 [ 13.203755] kasan_save_alloc_info+0x3b/0x50 [ 13.203984] __kasan_kmalloc+0xb7/0xc0 [ 13.204263] __kmalloc_cache_noprof+0x189/0x420 [ 13.204439] kasan_memcmp+0xb7/0x390 [ 13.204625] kunit_try_run_case+0x1a5/0x480 [ 13.204891] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.205129] kthread+0x337/0x6f0 [ 13.205274] ret_from_fork+0x41/0x80 [ 13.205455] ret_from_fork_asm+0x1a/0x30 [ 13.205702] [ 13.205778] The buggy address belongs to the object at ffff888103603fc0 [ 13.205778] which belongs to the cache kmalloc-32 of size 32 [ 13.206145] The buggy address is located 0 bytes to the right of [ 13.206145] allocated 24-byte region [ffff888103603fc0, ffff888103603fd8) [ 13.206641] [ 13.206806] The buggy address belongs to the physical page: [ 13.207078] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103603 [ 13.207438] flags: 0x200000000000000(node=0|zone=2) [ 13.207778] page_type: f5(slab) [ 13.208092] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 13.208401] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 13.208736] page dumped because: kasan: bad access detected [ 13.209006] [ 13.209108] Memory state around the buggy address: [ 13.209294] ffff888103603e80: fa fb fb fb fc fc fc fc 00 00 07 fc fc fc fc fc [ 13.209512] ffff888103603f00: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 13.209838] >ffff888103603f80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 13.210281] ^ [ 13.210471] ffff888103604000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.210687] ffff888103604080: fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb [ 13.211102] ==================================================================