Date
July 19, 2025, 11:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.357552] ================================================================== [ 15.357626] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 15.357678] Write of size 8 at addr fff00000c5f9de71 by task kunit_try_catch/177 [ 15.358051] [ 15.358127] CPU: 1 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.358351] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.358383] Hardware name: linux,dummy-virt (DT) [ 15.358422] Call trace: [ 15.358628] show_stack+0x20/0x38 (C) [ 15.358985] dump_stack_lvl+0x8c/0xd0 [ 15.359055] print_report+0x118/0x5d0 [ 15.359165] kasan_report+0xdc/0x128 [ 15.359252] kasan_check_range+0x100/0x1a8 [ 15.359409] __asan_memset+0x34/0x78 [ 15.359496] kmalloc_oob_memset_8+0x150/0x2f8 [ 15.359890] kunit_try_run_case+0x170/0x3f0 [ 15.359949] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.360053] kthread+0x328/0x630 [ 15.360096] ret_from_fork+0x10/0x20 [ 15.360143] [ 15.360161] Allocated by task 177: [ 15.360191] kasan_save_stack+0x3c/0x68 [ 15.360230] kasan_save_track+0x20/0x40 [ 15.360267] kasan_save_alloc_info+0x40/0x58 [ 15.360316] __kasan_kmalloc+0xd4/0xd8 [ 15.360353] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.360392] kmalloc_oob_memset_8+0xb0/0x2f8 [ 15.360429] kunit_try_run_case+0x170/0x3f0 [ 15.360471] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.360524] kthread+0x328/0x630 [ 15.360567] ret_from_fork+0x10/0x20 [ 15.360611] [ 15.360630] The buggy address belongs to the object at fff00000c5f9de00 [ 15.360630] which belongs to the cache kmalloc-128 of size 128 [ 15.360709] The buggy address is located 113 bytes inside of [ 15.360709] allocated 120-byte region [fff00000c5f9de00, fff00000c5f9de78) [ 15.360768] [ 15.360788] The buggy address belongs to the physical page: [ 15.360839] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105f9d [ 15.360890] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.360942] page_type: f5(slab) [ 15.360979] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.361027] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.361065] page dumped because: kasan: bad access detected [ 15.361095] [ 15.361113] Memory state around the buggy address: [ 15.361152] fff00000c5f9dd00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.361193] fff00000c5f9dd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.361234] >fff00000c5f9de00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.361277] ^ [ 15.361326] fff00000c5f9de80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.361367] fff00000c5f9df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.361403] ==================================================================
[ 12.217599] ================================================================== [ 12.218339] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 12.218765] Write of size 8 at addr ffff8881027e4371 by task kunit_try_catch/194 [ 12.219455] [ 12.219722] CPU: 0 UID: 0 PID: 194 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.219860] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.219875] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.219897] Call Trace: [ 12.219910] <TASK> [ 12.219926] dump_stack_lvl+0x73/0xb0 [ 12.219958] print_report+0xd1/0x610 [ 12.219981] ? __virt_addr_valid+0x1db/0x2d0 [ 12.220004] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.220025] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.220108] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.220134] kasan_report+0x141/0x180 [ 12.220155] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.220182] kasan_check_range+0x10c/0x1c0 [ 12.220205] __asan_memset+0x27/0x50 [ 12.220223] kmalloc_oob_memset_8+0x166/0x330 [ 12.220245] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 12.220268] ? __schedule+0x10cc/0x2b60 [ 12.220290] ? __pfx_read_tsc+0x10/0x10 [ 12.220310] ? ktime_get_ts64+0x86/0x230 [ 12.220335] kunit_try_run_case+0x1a5/0x480 [ 12.220360] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.220382] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.220407] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.220430] ? __kthread_parkme+0x82/0x180 [ 12.220450] ? preempt_count_sub+0x50/0x80 [ 12.220473] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.220512] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.220535] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.220559] kthread+0x337/0x6f0 [ 12.220578] ? trace_preempt_on+0x20/0xc0 [ 12.220601] ? __pfx_kthread+0x10/0x10 [ 12.220621] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.220642] ? calculate_sigpending+0x7b/0xa0 [ 12.220666] ? __pfx_kthread+0x10/0x10 [ 12.220686] ret_from_fork+0x116/0x1d0 [ 12.220704] ? __pfx_kthread+0x10/0x10 [ 12.220724] ret_from_fork_asm+0x1a/0x30 [ 12.220754] </TASK> [ 12.220764] [ 12.231294] Allocated by task 194: [ 12.231625] kasan_save_stack+0x45/0x70 [ 12.231943] kasan_save_track+0x18/0x40 [ 12.232289] kasan_save_alloc_info+0x3b/0x50 [ 12.232491] __kasan_kmalloc+0xb7/0xc0 [ 12.232677] __kmalloc_cache_noprof+0x189/0x420 [ 12.232891] kmalloc_oob_memset_8+0xac/0x330 [ 12.233096] kunit_try_run_case+0x1a5/0x480 [ 12.233621] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.233820] kthread+0x337/0x6f0 [ 12.234263] ret_from_fork+0x116/0x1d0 [ 12.234566] ret_from_fork_asm+0x1a/0x30 [ 12.234927] [ 12.235020] The buggy address belongs to the object at ffff8881027e4300 [ 12.235020] which belongs to the cache kmalloc-128 of size 128 [ 12.235736] The buggy address is located 113 bytes inside of [ 12.235736] allocated 120-byte region [ffff8881027e4300, ffff8881027e4378) [ 12.236592] [ 12.236692] The buggy address belongs to the physical page: [ 12.236897] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027e4 [ 12.237476] flags: 0x200000000000000(node=0|zone=2) [ 12.237817] page_type: f5(slab) [ 12.237991] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.238590] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.239002] page dumped because: kasan: bad access detected [ 12.239474] [ 12.239579] Memory state around the buggy address: [ 12.239796] ffff8881027e4200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.240386] ffff8881027e4280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.240688] >ffff8881027e4300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.241156] ^ [ 12.241573] ffff8881027e4380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.241979] ffff8881027e4400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.242579] ==================================================================