Date
July 16, 2025, 3:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.695827] ================================================================== [ 16.695895] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 16.695947] Write of size 4 at addr fff00000c6554c75 by task kunit_try_catch/174 [ 16.695995] [ 16.696035] CPU: 1 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.696118] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.696153] Hardware name: linux,dummy-virt (DT) [ 16.696183] Call trace: [ 16.696208] show_stack+0x20/0x38 (C) [ 16.696264] dump_stack_lvl+0x8c/0xd0 [ 16.696316] print_report+0x118/0x5d0 [ 16.696362] kasan_report+0xdc/0x128 [ 16.696406] kasan_check_range+0x100/0x1a8 [ 16.696451] __asan_memset+0x34/0x78 [ 16.696492] kmalloc_oob_memset_4+0x150/0x300 [ 16.696537] kunit_try_run_case+0x170/0x3f0 [ 16.696583] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.696634] kthread+0x328/0x630 [ 16.696675] ret_from_fork+0x10/0x20 [ 16.696733] [ 16.696750] Allocated by task 174: [ 16.696777] kasan_save_stack+0x3c/0x68 [ 16.696816] kasan_save_track+0x20/0x40 [ 16.696853] kasan_save_alloc_info+0x40/0x58 [ 16.696892] __kasan_kmalloc+0xd4/0xd8 [ 16.696935] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.696973] kmalloc_oob_memset_4+0xb0/0x300 [ 16.697649] kunit_try_run_case+0x170/0x3f0 [ 16.697766] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.697864] kthread+0x328/0x630 [ 16.697897] ret_from_fork+0x10/0x20 [ 16.697935] [ 16.697954] The buggy address belongs to the object at fff00000c6554c00 [ 16.697954] which belongs to the cache kmalloc-128 of size 128 [ 16.698015] The buggy address is located 117 bytes inside of [ 16.698015] allocated 120-byte region [fff00000c6554c00, fff00000c6554c78) [ 16.698223] [ 16.698246] The buggy address belongs to the physical page: [ 16.698283] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106554 [ 16.698357] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.698466] page_type: f5(slab) [ 16.698556] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.698628] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.699024] page dumped because: kasan: bad access detected [ 16.699101] [ 16.699173] Memory state around the buggy address: [ 16.699280] fff00000c6554b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.699335] fff00000c6554b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.699377] >fff00000c6554c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.699515] ^ [ 16.699555] fff00000c6554c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.699740] fff00000c6554d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.699956] ==================================================================
[ 12.658200] ================================================================== [ 12.658708] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 12.659072] Write of size 4 at addr ffff8881029cca75 by task kunit_try_catch/191 [ 12.659462] [ 12.659573] CPU: 1 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.659616] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.659627] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.659649] Call Trace: [ 12.659661] <TASK> [ 12.659688] dump_stack_lvl+0x73/0xb0 [ 12.659717] print_report+0xd1/0x610 [ 12.659740] ? __virt_addr_valid+0x1db/0x2d0 [ 12.659793] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.659815] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.659839] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.659872] kasan_report+0x141/0x180 [ 12.659894] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.659921] kasan_check_range+0x10c/0x1c0 [ 12.659945] __asan_memset+0x27/0x50 [ 12.659965] kmalloc_oob_memset_4+0x166/0x330 [ 12.660001] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.660024] ? kasan_save_stack+0x45/0x70 [ 12.660045] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.660072] kunit_try_run_case+0x1a5/0x480 [ 12.660097] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.660120] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.660145] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.660169] ? __kthread_parkme+0x82/0x180 [ 12.660191] ? preempt_count_sub+0x50/0x80 [ 12.660216] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.660247] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.660281] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.660307] kthread+0x337/0x6f0 [ 12.660326] ? trace_preempt_on+0x20/0xc0 [ 12.660362] ? __pfx_kthread+0x10/0x10 [ 12.660382] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.660404] ? calculate_sigpending+0x7b/0xa0 [ 12.660428] ? __pfx_kthread+0x10/0x10 [ 12.660460] ret_from_fork+0x116/0x1d0 [ 12.660480] ? __pfx_kthread+0x10/0x10 [ 12.660500] ret_from_fork_asm+0x1a/0x30 [ 12.660532] </TASK> [ 12.660541] [ 12.668881] Allocated by task 191: [ 12.669011] kasan_save_stack+0x45/0x70 [ 12.669151] kasan_save_track+0x18/0x40 [ 12.669450] kasan_save_alloc_info+0x3b/0x50 [ 12.669663] __kasan_kmalloc+0xb7/0xc0 [ 12.669861] __kmalloc_cache_noprof+0x189/0x420 [ 12.670086] kmalloc_oob_memset_4+0xac/0x330 [ 12.670492] kunit_try_run_case+0x1a5/0x480 [ 12.670873] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.671266] kthread+0x337/0x6f0 [ 12.671410] ret_from_fork+0x116/0x1d0 [ 12.671697] ret_from_fork_asm+0x1a/0x30 [ 12.671856] [ 12.671927] The buggy address belongs to the object at ffff8881029cca00 [ 12.671927] which belongs to the cache kmalloc-128 of size 128 [ 12.672441] The buggy address is located 117 bytes inside of [ 12.672441] allocated 120-byte region [ffff8881029cca00, ffff8881029cca78) [ 12.673116] [ 12.673286] The buggy address belongs to the physical page: [ 12.673572] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029cc [ 12.673911] flags: 0x200000000000000(node=0|zone=2) [ 12.674183] page_type: f5(slab) [ 12.674405] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.674774] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.675244] page dumped because: kasan: bad access detected [ 12.675521] [ 12.675667] Memory state around the buggy address: [ 12.675985] ffff8881029cc900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.676276] ffff8881029cc980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.676713] >ffff8881029cca00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.677117] ^ [ 12.677506] ffff8881029cca80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.678113] ffff8881029ccb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.678390] ==================================================================