Date
June 24, 2025, 12:47 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.156725] ================================================================== [ 23.156852] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 23.156987] Read of size 1 at addr fff00000c3fab67f by task kunit_try_catch/140 [ 23.157102] [ 23.157185] CPU: 0 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 23.157683] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.157795] Hardware name: linux,dummy-virt (DT) [ 23.157998] Call trace: [ 23.158960] show_stack+0x20/0x38 (C) [ 23.159786] dump_stack_lvl+0x8c/0xd0 [ 23.159942] print_report+0x118/0x608 [ 23.160076] kasan_report+0xdc/0x128 [ 23.160205] __asan_report_load1_noabort+0x20/0x30 [ 23.160372] kmalloc_oob_left+0x2ec/0x320 [ 23.160523] kunit_try_run_case+0x170/0x3f0 [ 23.160698] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.160985] kthread+0x328/0x630 [ 23.161172] ret_from_fork+0x10/0x20 [ 23.161476] [ 23.161522] Allocated by task 10: [ 23.161593] kasan_save_stack+0x3c/0x68 [ 23.161740] kasan_save_track+0x20/0x40 [ 23.161961] kasan_save_alloc_info+0x40/0x58 [ 23.162119] __kasan_kmalloc+0xd4/0xd8 [ 23.162252] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 23.162457] kvasprintf+0xe0/0x180 [ 23.162549] __kthread_create_on_node+0x16c/0x350 [ 23.162644] kthread_create_on_node+0xe4/0x130 [ 23.162792] create_worker+0x380/0x6b8 [ 23.162885] worker_thread+0x808/0xf38 [ 23.162969] kthread+0x328/0x630 [ 23.163099] ret_from_fork+0x10/0x20 [ 23.163193] [ 23.163296] The buggy address belongs to the object at fff00000c3fab660 [ 23.163296] which belongs to the cache kmalloc-16 of size 16 [ 23.163503] The buggy address is located 19 bytes to the right of [ 23.163503] allocated 12-byte region [fff00000c3fab660, fff00000c3fab66c) [ 23.165125] [ 23.165227] The buggy address belongs to the physical page: [ 23.165339] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103fab [ 23.165562] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 23.165684] page_type: f5(slab) [ 23.165776] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 23.165897] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 23.165993] page dumped because: kasan: bad access detected [ 23.166066] [ 23.166109] Memory state around the buggy address: [ 23.166241] fff00000c3fab500: 00 02 fc fc 00 02 fc fc 00 02 fc fc 00 05 fc fc [ 23.166405] fff00000c3fab580: fa fb fc fc 00 02 fc fc fa fb fc fc fa fb fc fc [ 23.166677] >fff00000c3fab600: fa fb fc fc fa fb fc fc fa fb fc fc 00 04 fc fc [ 23.166828] ^ [ 23.166926] fff00000c3fab680: 00 07 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.167038] fff00000c3fab700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.167294] ==================================================================
[ 10.905490] ================================================================== [ 10.906168] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 10.906723] Read of size 1 at addr ffff8881023b0f1f by task kunit_try_catch/158 [ 10.907263] [ 10.907415] CPU: 0 UID: 0 PID: 158 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 10.907501] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.907522] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.907617] Call Trace: [ 10.907671] <TASK> [ 10.907705] dump_stack_lvl+0x73/0xb0 [ 10.907766] print_report+0xd1/0x650 [ 10.907812] ? __virt_addr_valid+0x1db/0x2d0 [ 10.907849] ? kmalloc_oob_left+0x361/0x3c0 [ 10.907884] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.907920] ? kmalloc_oob_left+0x361/0x3c0 [ 10.907958] kasan_report+0x141/0x180 [ 10.908020] ? kmalloc_oob_left+0x361/0x3c0 [ 10.908070] __asan_report_load1_noabort+0x18/0x20 [ 10.908104] kmalloc_oob_left+0x361/0x3c0 [ 10.908146] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 10.908184] ? __schedule+0x10cc/0x2b60 [ 10.908228] ? __pfx_read_tsc+0x10/0x10 [ 10.908319] ? ktime_get_ts64+0x86/0x230 [ 10.908362] kunit_try_run_case+0x1a5/0x480 [ 10.908401] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.908433] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.908474] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.908513] ? __kthread_parkme+0x82/0x180 [ 10.908569] ? preempt_count_sub+0x50/0x80 [ 10.908603] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.908642] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.908667] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.908689] kthread+0x337/0x6f0 [ 10.908712] ? trace_preempt_on+0x20/0xc0 [ 10.908747] ? __pfx_kthread+0x10/0x10 [ 10.908774] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.908809] ? calculate_sigpending+0x7b/0xa0 [ 10.908846] ? __pfx_kthread+0x10/0x10 [ 10.908901] ret_from_fork+0x41/0x80 [ 10.908938] ? __pfx_kthread+0x10/0x10 [ 10.908973] ret_from_fork_asm+0x1a/0x30 [ 10.909027] </TASK> [ 10.909050] [ 10.919263] Allocated by task 11: [ 10.919775] kasan_save_stack+0x45/0x70 [ 10.920135] kasan_save_track+0x18/0x40 [ 10.920565] kasan_save_alloc_info+0x3b/0x50 [ 10.920924] __kasan_kmalloc+0xb7/0xc0 [ 10.921117] __kmalloc_node_track_caller_noprof+0x1cb/0x500 [ 10.921519] kvasprintf+0xc5/0x150 [ 10.921971] __kthread_create_on_node+0x18b/0x3a0 [ 10.922359] kthread_create_on_node+0xab/0xe0 [ 10.922687] create_worker+0x3e5/0x7b0 [ 10.922847] worker_thread+0x992/0x1220 [ 10.923099] kthread+0x337/0x6f0 [ 10.923343] ret_from_fork+0x41/0x80 [ 10.923507] ret_from_fork_asm+0x1a/0x30 [ 10.923723] [ 10.923867] The buggy address belongs to the object at ffff8881023b0f00 [ 10.923867] which belongs to the cache kmalloc-16 of size 16 [ 10.924753] The buggy address is located 19 bytes to the right of [ 10.924753] allocated 12-byte region [ffff8881023b0f00, ffff8881023b0f0c) [ 10.925172] [ 10.925285] The buggy address belongs to the physical page: [ 10.925935] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1023b0 [ 10.926526] flags: 0x200000000000000(node=0|zone=2) [ 10.926947] page_type: f5(slab) [ 10.927118] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 10.927372] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 10.927885] page dumped because: kasan: bad access detected [ 10.928251] [ 10.928407] Memory state around the buggy address: [ 10.928851] ffff8881023b0e00: 00 03 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 10.929336] ffff8881023b0e80: fa fb fc fc 00 00 fc fc fa fb fc fc 00 00 fc fc [ 10.929582] >ffff8881023b0f00: 00 04 fc fc 00 07 fc fc fc fc fc fc fc fc fc fc [ 10.930081] ^ [ 10.930377] ffff8881023b0f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.932122] ffff8881023b1000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.932383] ==================================================================