Date
July 22, 2025, 5:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.398292] ================================================================== [ 30.398448] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 30.398507] Write of size 8 at addr fff00000c3f71d71 by task kunit_try_catch/207 [ 30.398582] [ 30.398895] CPU: 1 UID: 0 PID: 207 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250722 #1 PREEMPT [ 30.398999] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 30.399081] Hardware name: linux,dummy-virt (DT) [ 30.399141] Call trace: [ 30.399181] show_stack+0x20/0x38 (C) [ 30.399248] dump_stack_lvl+0x8c/0xd0 [ 30.399337] print_report+0x118/0x5e8 [ 30.399383] kasan_report+0xdc/0x128 [ 30.399442] kasan_check_range+0x100/0x1a8 [ 30.399740] __asan_memset+0x34/0x78 [ 30.399820] kmalloc_oob_memset_8+0x150/0x2f8 [ 30.399879] kunit_try_run_case+0x170/0x3f0 [ 30.399938] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.400091] kthread+0x328/0x630 [ 30.400157] ret_from_fork+0x10/0x20 [ 30.400275] [ 30.400316] Allocated by task 207: [ 30.400351] kasan_save_stack+0x3c/0x68 [ 30.400409] kasan_save_track+0x20/0x40 [ 30.400451] kasan_save_alloc_info+0x40/0x58 [ 30.400717] __kasan_kmalloc+0xd4/0xd8 [ 30.400779] __kmalloc_cache_noprof+0x16c/0x3c0 [ 30.400831] kmalloc_oob_memset_8+0xb0/0x2f8 [ 30.400954] kunit_try_run_case+0x170/0x3f0 [ 30.401055] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.401113] kthread+0x328/0x630 [ 30.401156] ret_from_fork+0x10/0x20 [ 30.401194] [ 30.401259] The buggy address belongs to the object at fff00000c3f71d00 [ 30.401259] which belongs to the cache kmalloc-128 of size 128 [ 30.401326] The buggy address is located 113 bytes inside of [ 30.401326] allocated 120-byte region [fff00000c3f71d00, fff00000c3f71d78) [ 30.401386] [ 30.401406] The buggy address belongs to the physical page: [ 30.401443] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f71 [ 30.401496] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.401545] page_type: f5(slab) [ 30.401596] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000100 dead000000000122 [ 30.401646] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 30.401685] page dumped because: kasan: bad access detected [ 30.401716] [ 30.401742] Memory state around the buggy address: [ 30.401789] fff00000c3f71c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.402230] fff00000c3f71c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.402314] >fff00000c3f71d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 30.402392] ^ [ 30.402468] fff00000c3f71d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.402596] fff00000c3f71e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.402662] ==================================================================
[ 25.247183] ================================================================== [ 25.248042] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 25.248654] Write of size 8 at addr ffff8881058a9471 by task kunit_try_catch/224 [ 25.249384] [ 25.249481] CPU: 1 UID: 0 PID: 224 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250722 #1 PREEMPT(voluntary) [ 25.249531] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.249544] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.249572] Call Trace: [ 25.249586] <TASK> [ 25.249603] dump_stack_lvl+0x73/0xb0 [ 25.249635] print_report+0xd1/0x640 [ 25.249658] ? __virt_addr_valid+0x1db/0x2d0 [ 25.249682] ? kmalloc_oob_memset_8+0x166/0x330 [ 25.249704] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.249730] ? kmalloc_oob_memset_8+0x166/0x330 [ 25.249752] kasan_report+0x141/0x180 [ 25.249774] ? kmalloc_oob_memset_8+0x166/0x330 [ 25.249800] kasan_check_range+0x10c/0x1c0 [ 25.249823] __asan_memset+0x27/0x50 [ 25.249858] kmalloc_oob_memset_8+0x166/0x330 [ 25.249881] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 25.249904] ? __schedule+0x10da/0x2b60 [ 25.249929] ? __pfx_read_tsc+0x10/0x10 [ 25.249951] ? ktime_get_ts64+0x86/0x230 [ 25.249975] kunit_try_run_case+0x1a5/0x480 [ 25.250023] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.250059] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.250084] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.250109] ? __kthread_parkme+0x82/0x180 [ 25.250140] ? preempt_count_sub+0x50/0x80 [ 25.250163] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.250188] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.250211] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.250235] kthread+0x337/0x6f0 [ 25.250254] ? trace_preempt_on+0x20/0xc0 [ 25.250287] ? __pfx_kthread+0x10/0x10 [ 25.250308] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.250330] ? calculate_sigpending+0x7b/0xa0 [ 25.250353] ? __pfx_kthread+0x10/0x10 [ 25.250375] ret_from_fork+0x116/0x1d0 [ 25.250394] ? __pfx_kthread+0x10/0x10 [ 25.250415] ret_from_fork_asm+0x1a/0x30 [ 25.250446] </TASK> [ 25.250471] [ 25.261923] Allocated by task 224: [ 25.262081] kasan_save_stack+0x45/0x70 [ 25.262379] kasan_save_track+0x18/0x40 [ 25.262694] kasan_save_alloc_info+0x3b/0x50 [ 25.262952] __kasan_kmalloc+0xb7/0xc0 [ 25.263119] __kmalloc_cache_noprof+0x189/0x420 [ 25.263313] kmalloc_oob_memset_8+0xac/0x330 [ 25.263626] kunit_try_run_case+0x1a5/0x480 [ 25.263940] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.264215] kthread+0x337/0x6f0 [ 25.264441] ret_from_fork+0x116/0x1d0 [ 25.264653] ret_from_fork_asm+0x1a/0x30 [ 25.264790] [ 25.264878] The buggy address belongs to the object at ffff8881058a9400 [ 25.264878] which belongs to the cache kmalloc-128 of size 128 [ 25.265312] The buggy address is located 113 bytes inside of [ 25.265312] allocated 120-byte region [ffff8881058a9400, ffff8881058a9478) [ 25.266203] [ 25.266290] The buggy address belongs to the physical page: [ 25.266591] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1058a9 [ 25.267076] flags: 0x200000000000000(node=0|zone=2) [ 25.267511] page_type: f5(slab) [ 25.267794] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 25.268056] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 25.268577] page dumped because: kasan: bad access detected [ 25.268788] [ 25.268964] Memory state around the buggy address: [ 25.269224] ffff8881058a9300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.269580] ffff8881058a9380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.269963] >ffff8881058a9400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 25.270318] ^ [ 25.270755] ffff8881058a9480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.271048] ffff8881058a9500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.271445] ==================================================================