Date
July 12, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.760717] ================================================================== [ 16.760778] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 16.760828] Write of size 8 at addr fff00000c585ed71 by task kunit_try_catch/176 [ 16.760877] [ 16.761217] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.761361] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.761409] Hardware name: linux,dummy-virt (DT) [ 16.761491] Call trace: [ 16.761530] show_stack+0x20/0x38 (C) [ 16.761580] dump_stack_lvl+0x8c/0xd0 [ 16.761625] print_report+0x118/0x5d0 [ 16.761865] kasan_report+0xdc/0x128 [ 16.761926] kasan_check_range+0x100/0x1a8 [ 16.762011] __asan_memset+0x34/0x78 [ 16.762062] kmalloc_oob_memset_8+0x150/0x2f8 [ 16.762127] kunit_try_run_case+0x170/0x3f0 [ 16.762185] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.762253] kthread+0x328/0x630 [ 16.762310] ret_from_fork+0x10/0x20 [ 16.762376] [ 16.762439] Allocated by task 176: [ 16.762468] kasan_save_stack+0x3c/0x68 [ 16.762508] kasan_save_track+0x20/0x40 [ 16.762546] kasan_save_alloc_info+0x40/0x58 [ 16.762602] __kasan_kmalloc+0xd4/0xd8 [ 16.762727] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.762769] kmalloc_oob_memset_8+0xb0/0x2f8 [ 16.762895] kunit_try_run_case+0x170/0x3f0 [ 16.763006] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.763055] kthread+0x328/0x630 [ 16.763104] ret_from_fork+0x10/0x20 [ 16.763140] [ 16.763297] The buggy address belongs to the object at fff00000c585ed00 [ 16.763297] which belongs to the cache kmalloc-128 of size 128 [ 16.763638] The buggy address is located 113 bytes inside of [ 16.763638] allocated 120-byte region [fff00000c585ed00, fff00000c585ed78) [ 16.763713] [ 16.763733] The buggy address belongs to the physical page: [ 16.763762] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10585e [ 16.763817] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.764089] page_type: f5(slab) [ 16.764228] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.764280] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.764747] page dumped because: kasan: bad access detected [ 16.764834] [ 16.764935] Memory state around the buggy address: [ 16.765023] fff00000c585ec00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.765145] fff00000c585ec80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.765199] >fff00000c585ed00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.765285] ^ [ 16.765571] fff00000c585ed80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.765653] fff00000c585ee00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.765753] ==================================================================
[ 13.115082] ================================================================== [ 13.115623] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 13.115942] Write of size 8 at addr ffff8881027eb571 by task kunit_try_catch/193 [ 13.116435] [ 13.116535] CPU: 0 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 13.116580] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.116593] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.116614] Call Trace: [ 13.116627] <TASK> [ 13.116646] dump_stack_lvl+0x73/0xb0 [ 13.116678] print_report+0xd1/0x610 [ 13.116700] ? __virt_addr_valid+0x1db/0x2d0 [ 13.116724] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.116746] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.116770] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.116792] kasan_report+0x141/0x180 [ 13.116814] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.116841] kasan_check_range+0x10c/0x1c0 [ 13.116865] __asan_memset+0x27/0x50 [ 13.116885] kmalloc_oob_memset_8+0x166/0x330 [ 13.116908] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 13.116931] ? __schedule+0x10cc/0x2b60 [ 13.116954] ? __pfx_read_tsc+0x10/0x10 [ 13.116975] ? ktime_get_ts64+0x86/0x230 [ 13.117067] kunit_try_run_case+0x1a5/0x480 [ 13.117093] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.117116] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.117141] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.117165] ? __kthread_parkme+0x82/0x180 [ 13.117187] ? preempt_count_sub+0x50/0x80 [ 13.117212] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.117236] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.117273] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.117298] kthread+0x337/0x6f0 [ 13.117318] ? trace_preempt_on+0x20/0xc0 [ 13.117342] ? __pfx_kthread+0x10/0x10 [ 13.117364] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.117386] ? calculate_sigpending+0x7b/0xa0 [ 13.117412] ? __pfx_kthread+0x10/0x10 [ 13.117434] ret_from_fork+0x116/0x1d0 [ 13.117454] ? __pfx_kthread+0x10/0x10 [ 13.117477] ret_from_fork_asm+0x1a/0x30 [ 13.117510] </TASK> [ 13.117522] [ 13.124957] Allocated by task 193: [ 13.125276] kasan_save_stack+0x45/0x70 [ 13.125487] kasan_save_track+0x18/0x40 [ 13.125669] kasan_save_alloc_info+0x3b/0x50 [ 13.125819] __kasan_kmalloc+0xb7/0xc0 [ 13.125952] __kmalloc_cache_noprof+0x189/0x420 [ 13.126255] kmalloc_oob_memset_8+0xac/0x330 [ 13.126483] kunit_try_run_case+0x1a5/0x480 [ 13.126695] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.126959] kthread+0x337/0x6f0 [ 13.127195] ret_from_fork+0x116/0x1d0 [ 13.127344] ret_from_fork_asm+0x1a/0x30 [ 13.127486] [ 13.127558] The buggy address belongs to the object at ffff8881027eb500 [ 13.127558] which belongs to the cache kmalloc-128 of size 128 [ 13.128086] The buggy address is located 113 bytes inside of [ 13.128086] allocated 120-byte region [ffff8881027eb500, ffff8881027eb578) [ 13.128547] [ 13.128621] The buggy address belongs to the physical page: [ 13.128795] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027eb [ 13.129035] flags: 0x200000000000000(node=0|zone=2) [ 13.129346] page_type: f5(slab) [ 13.129533] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.129880] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.130220] page dumped because: kasan: bad access detected [ 13.130486] [ 13.130720] Memory state around the buggy address: [ 13.130952] ffff8881027eb400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.131309] ffff8881027eb480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.131639] >ffff8881027eb500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.131930] ^ [ 13.133385] ffff8881027eb580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.134042] ffff8881027eb600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.134282] ==================================================================