Date
July 3, 2025, 3:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.610307] ================================================================== [ 15.610445] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 15.610607] Write of size 4 at addr fff00000c7811375 by task kunit_try_catch/177 [ 15.610679] [ 15.610719] CPU: 1 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT [ 15.610799] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.610825] Hardware name: linux,dummy-virt (DT) [ 15.610855] Call trace: [ 15.611051] show_stack+0x20/0x38 (C) [ 15.611444] dump_stack_lvl+0x8c/0xd0 [ 15.611586] print_report+0x118/0x608 [ 15.611710] kasan_report+0xdc/0x128 [ 15.611874] kasan_check_range+0x100/0x1a8 [ 15.612185] __asan_memset+0x34/0x78 [ 15.612287] kmalloc_oob_memset_4+0x150/0x300 [ 15.612408] kunit_try_run_case+0x170/0x3f0 [ 15.612579] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.612634] kthread+0x328/0x630 [ 15.613019] ret_from_fork+0x10/0x20 [ 15.613135] [ 15.613232] Allocated by task 177: [ 15.613320] kasan_save_stack+0x3c/0x68 [ 15.613503] kasan_save_track+0x20/0x40 [ 15.613581] kasan_save_alloc_info+0x40/0x58 [ 15.613639] __kasan_kmalloc+0xd4/0xd8 [ 15.613860] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.614068] kmalloc_oob_memset_4+0xb0/0x300 [ 15.614131] kunit_try_run_case+0x170/0x3f0 [ 15.614233] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.614416] kthread+0x328/0x630 [ 15.614514] ret_from_fork+0x10/0x20 [ 15.614550] [ 15.614569] The buggy address belongs to the object at fff00000c7811300 [ 15.614569] which belongs to the cache kmalloc-128 of size 128 [ 15.614623] The buggy address is located 117 bytes inside of [ 15.614623] allocated 120-byte region [fff00000c7811300, fff00000c7811378) [ 15.615129] [ 15.615195] The buggy address belongs to the physical page: [ 15.615229] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107811 [ 15.615605] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.615701] page_type: f5(slab) [ 15.615800] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.615901] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.615990] page dumped because: kasan: bad access detected [ 15.616240] [ 15.616433] Memory state around the buggy address: [ 15.616689] fff00000c7811200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.617124] fff00000c7811280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.617180] >fff00000c7811300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.617565] ^ [ 15.617836] fff00000c7811380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.617911] fff00000c7811400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.618016] ==================================================================
[ 11.290483] ================================================================== [ 11.291049] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 11.291434] Write of size 4 at addr ffff888102dc0775 by task kunit_try_catch/193 [ 11.292085] [ 11.292215] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT(voluntary) [ 11.292276] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.292288] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.292311] Call Trace: [ 11.292323] <TASK> [ 11.292342] dump_stack_lvl+0x73/0xb0 [ 11.292371] print_report+0xd1/0x650 [ 11.292395] ? __virt_addr_valid+0x1db/0x2d0 [ 11.292417] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.292439] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.292462] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.292484] kasan_report+0x141/0x180 [ 11.292507] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.292534] kasan_check_range+0x10c/0x1c0 [ 11.292554] __asan_memset+0x27/0x50 [ 11.292574] kmalloc_oob_memset_4+0x166/0x330 [ 11.292598] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 11.292622] ? __schedule+0x10cc/0x2b60 [ 11.292645] ? __pfx_read_tsc+0x10/0x10 [ 11.292665] ? ktime_get_ts64+0x86/0x230 [ 11.292692] kunit_try_run_case+0x1a5/0x480 [ 11.292717] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.292738] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.292762] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.292785] ? __kthread_parkme+0x82/0x180 [ 11.292807] ? preempt_count_sub+0x50/0x80 [ 11.292833] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.292857] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.292879] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.292902] kthread+0x337/0x6f0 [ 11.292919] ? trace_preempt_on+0x20/0xc0 [ 11.292943] ? __pfx_kthread+0x10/0x10 [ 11.292961] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.292982] ? calculate_sigpending+0x7b/0xa0 [ 11.293004] ? __pfx_kthread+0x10/0x10 [ 11.293022] ret_from_fork+0x41/0x80 [ 11.293062] ? __pfx_kthread+0x10/0x10 [ 11.293097] ret_from_fork_asm+0x1a/0x30 [ 11.293141] </TASK> [ 11.293153] [ 11.301944] Allocated by task 193: [ 11.302144] kasan_save_stack+0x45/0x70 [ 11.302480] kasan_save_track+0x18/0x40 [ 11.302624] kasan_save_alloc_info+0x3b/0x50 [ 11.302937] __kasan_kmalloc+0xb7/0xc0 [ 11.303153] __kmalloc_cache_noprof+0x189/0x420 [ 11.303466] kmalloc_oob_memset_4+0xac/0x330 [ 11.303742] kunit_try_run_case+0x1a5/0x480 [ 11.303952] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.304141] kthread+0x337/0x6f0 [ 11.304366] ret_from_fork+0x41/0x80 [ 11.304613] ret_from_fork_asm+0x1a/0x30 [ 11.304858] [ 11.304951] The buggy address belongs to the object at ffff888102dc0700 [ 11.304951] which belongs to the cache kmalloc-128 of size 128 [ 11.305528] The buggy address is located 117 bytes inside of [ 11.305528] allocated 120-byte region [ffff888102dc0700, ffff888102dc0778) [ 11.306284] [ 11.306459] The buggy address belongs to the physical page: [ 11.306907] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102dc0 [ 11.307427] flags: 0x200000000000000(node=0|zone=2) [ 11.307689] page_type: f5(slab) [ 11.307862] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.308193] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.308562] page dumped because: kasan: bad access detected [ 11.308913] [ 11.309000] Memory state around the buggy address: [ 11.309162] ffff888102dc0600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.309400] ffff888102dc0680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.309947] >ffff888102dc0700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.310310] ^ [ 11.310635] ffff888102dc0780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.310884] ffff888102dc0800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.311098] ==================================================================