Date
July 5, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.002976] ================================================================== [ 19.003108] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 19.003219] Write of size 2 at addr fff00000c56f1977 by task kunit_try_catch/173 [ 19.003322] [ 19.003406] CPU: 0 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.003591] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.003649] Hardware name: linux,dummy-virt (DT) [ 19.003716] Call trace: [ 19.003763] show_stack+0x20/0x38 (C) [ 19.003860] dump_stack_lvl+0x8c/0xd0 [ 19.003967] print_report+0x118/0x608 [ 19.004069] kasan_report+0xdc/0x128 [ 19.004165] kasan_check_range+0x100/0x1a8 [ 19.004266] __asan_memset+0x34/0x78 [ 19.004379] kmalloc_oob_memset_2+0x150/0x2f8 [ 19.004473] kunit_try_run_case+0x170/0x3f0 [ 19.004590] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.004689] kthread+0x328/0x630 [ 19.004780] ret_from_fork+0x10/0x20 [ 19.004879] [ 19.004942] Allocated by task 173: [ 19.005025] kasan_save_stack+0x3c/0x68 [ 19.005124] kasan_save_track+0x20/0x40 [ 19.005230] kasan_save_alloc_info+0x40/0x58 [ 19.005321] __kasan_kmalloc+0xd4/0xd8 [ 19.005410] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.005506] kmalloc_oob_memset_2+0xb0/0x2f8 [ 19.005621] kunit_try_run_case+0x170/0x3f0 [ 19.005740] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.005834] kthread+0x328/0x630 [ 19.005904] ret_from_fork+0x10/0x20 [ 19.005981] [ 19.006036] The buggy address belongs to the object at fff00000c56f1900 [ 19.006036] which belongs to the cache kmalloc-128 of size 128 [ 19.006161] The buggy address is located 119 bytes inside of [ 19.006161] allocated 120-byte region [fff00000c56f1900, fff00000c56f1978) [ 19.006329] [ 19.006385] The buggy address belongs to the physical page: [ 19.006452] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1056f1 [ 19.006583] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.006687] page_type: f5(slab) [ 19.006764] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.006871] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.006962] page dumped because: kasan: bad access detected [ 19.007037] [ 19.007102] Memory state around the buggy address: [ 19.007198] fff00000c56f1800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.007303] fff00000c56f1880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.007756] >fff00000c56f1900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.007804] ^ [ 19.007849] fff00000c56f1980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.007889] fff00000c56f1a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.007956] ==================================================================
[ 13.688508] ================================================================== [ 13.689297] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 13.689629] Write of size 2 at addr ffff8881029df877 by task kunit_try_catch/189 [ 13.690098] [ 13.690514] CPU: 0 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.690578] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.690593] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.690618] Call Trace: [ 13.690634] <TASK> [ 13.690670] dump_stack_lvl+0x73/0xb0 [ 13.690706] print_report+0xd1/0x650 [ 13.690732] ? __virt_addr_valid+0x1db/0x2d0 [ 13.691163] ? kmalloc_oob_memset_2+0x166/0x330 [ 13.691195] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.691222] ? kmalloc_oob_memset_2+0x166/0x330 [ 13.691248] kasan_report+0x141/0x180 [ 13.691274] ? kmalloc_oob_memset_2+0x166/0x330 [ 13.691305] kasan_check_range+0x10c/0x1c0 [ 13.691333] __asan_memset+0x27/0x50 [ 13.691355] kmalloc_oob_memset_2+0x166/0x330 [ 13.691381] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 13.691408] ? __schedule+0x10cc/0x2b60 [ 13.691434] ? __pfx_read_tsc+0x10/0x10 [ 13.691459] ? ktime_get_ts64+0x86/0x230 [ 13.691487] kunit_try_run_case+0x1a5/0x480 [ 13.691517] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.691542] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.691569] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.691596] ? __kthread_parkme+0x82/0x180 [ 13.691619] ? preempt_count_sub+0x50/0x80 [ 13.691663] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.691690] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.691716] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.691742] kthread+0x337/0x6f0 [ 13.691765] ? trace_preempt_on+0x20/0xc0 [ 13.691793] ? __pfx_kthread+0x10/0x10 [ 13.691818] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.691843] ? calculate_sigpending+0x7b/0xa0 [ 13.691871] ? __pfx_kthread+0x10/0x10 [ 13.691896] ret_from_fork+0x116/0x1d0 [ 13.691917] ? __pfx_kthread+0x10/0x10 [ 13.691941] ret_from_fork_asm+0x1a/0x30 [ 13.691977] </TASK> [ 13.691992] [ 13.705580] Allocated by task 189: [ 13.705888] kasan_save_stack+0x45/0x70 [ 13.706114] kasan_save_track+0x18/0x40 [ 13.706341] kasan_save_alloc_info+0x3b/0x50 [ 13.706700] __kasan_kmalloc+0xb7/0xc0 [ 13.707019] __kmalloc_cache_noprof+0x189/0x420 [ 13.707294] kmalloc_oob_memset_2+0xac/0x330 [ 13.707516] kunit_try_run_case+0x1a5/0x480 [ 13.707768] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.708152] kthread+0x337/0x6f0 [ 13.708525] ret_from_fork+0x116/0x1d0 [ 13.708955] ret_from_fork_asm+0x1a/0x30 [ 13.709182] [ 13.709274] The buggy address belongs to the object at ffff8881029df800 [ 13.709274] which belongs to the cache kmalloc-128 of size 128 [ 13.710166] The buggy address is located 119 bytes inside of [ 13.710166] allocated 120-byte region [ffff8881029df800, ffff8881029df878) [ 13.710987] [ 13.711088] The buggy address belongs to the physical page: [ 13.711345] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029df [ 13.711845] flags: 0x200000000000000(node=0|zone=2) [ 13.712218] page_type: f5(slab) [ 13.712434] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.712824] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.713493] page dumped because: kasan: bad access detected [ 13.713800] [ 13.713955] Memory state around the buggy address: [ 13.714341] ffff8881029df700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.714738] ffff8881029df780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.715057] >ffff8881029df800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.715618] ^ [ 13.716233] ffff8881029df880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.716581] ffff8881029df900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.716986] ==================================================================