Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.930285] ================================================================== [ 20.930532] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 20.930723] Read of size 1 at addr fff00000c66b0fff by task kunit_try_catch/138 [ 20.930923] [ 20.931040] CPU: 1 UID: 0 PID: 138 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 20.931249] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.931305] Hardware name: linux,dummy-virt (DT) [ 20.931368] Call trace: [ 20.931501] show_stack+0x20/0x38 (C) [ 20.932424] dump_stack_lvl+0x8c/0xd0 [ 20.932571] print_report+0x118/0x608 [ 20.932678] kasan_report+0xdc/0x128 [ 20.933272] __asan_report_load1_noabort+0x20/0x30 [ 20.933793] kmalloc_oob_left+0x2ec/0x320 [ 20.934265] kunit_try_run_case+0x170/0x3f0 [ 20.934493] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.934682] kthread+0x328/0x630 [ 20.934970] ret_from_fork+0x10/0x20 [ 20.935372] [ 20.935451] The buggy address belongs to the object at fff00000c66b0f00 [ 20.935451] which belongs to the cache cred of size 184 [ 20.935588] The buggy address is located 71 bytes to the right of [ 20.935588] allocated 184-byte region [fff00000c66b0f00, fff00000c66b0fb8) [ 20.935741] [ 20.935800] The buggy address belongs to the physical page: [ 20.935876] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1066b0 [ 20.936006] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.936127] page_type: f5(slab) [ 20.936228] raw: 0bfffe0000000000 fff00000c002db40 dead000000000122 0000000000000000 [ 20.936354] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 20.936462] page dumped because: kasan: bad access detected [ 20.936539] [ 20.936581] Memory state around the buggy address: [ 20.937144] fff00000c66b0e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.937571] fff00000c66b0f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.937984] >fff00000c66b0f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.938091] ^ [ 20.938197] fff00000c66b1000: 00 07 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.938784] fff00000c66b1080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.939078] ==================================================================
[ 10.255229] ================================================================== [ 10.256871] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 10.257104] Read of size 1 at addr ffff888101c55f3f by task kunit_try_catch/155 [ 10.257326] [ 10.257412] CPU: 0 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.257456] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.257469] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.257490] Call Trace: [ 10.257501] <TASK> [ 10.257516] dump_stack_lvl+0x73/0xb0 [ 10.257541] print_report+0xd1/0x650 [ 10.257563] ? __virt_addr_valid+0x1db/0x2d0 [ 10.257585] ? kmalloc_oob_left+0x361/0x3c0 [ 10.257605] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.257643] ? kmalloc_oob_left+0x361/0x3c0 [ 10.257665] kasan_report+0x141/0x180 [ 10.257687] ? kmalloc_oob_left+0x361/0x3c0 [ 10.257713] __asan_report_load1_noabort+0x18/0x20 [ 10.257733] kmalloc_oob_left+0x361/0x3c0 [ 10.257756] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 10.257778] ? __schedule+0x10cc/0x2b60 [ 10.257801] ? __pfx_read_tsc+0x10/0x10 [ 10.257821] ? ktime_get_ts64+0x86/0x230 [ 10.257844] kunit_try_run_case+0x1a5/0x480 [ 10.257866] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.257885] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.257908] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.257999] ? __kthread_parkme+0x82/0x180 [ 10.258019] ? preempt_count_sub+0x50/0x80 [ 10.258042] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.258062] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.258086] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.258110] kthread+0x337/0x6f0 [ 10.258129] ? trace_preempt_on+0x20/0xc0 [ 10.258151] ? __pfx_kthread+0x10/0x10 [ 10.258172] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.258194] ? calculate_sigpending+0x7b/0xa0 [ 10.258217] ? __pfx_kthread+0x10/0x10 [ 10.258238] ret_from_fork+0x116/0x1d0 [ 10.258256] ? __pfx_kthread+0x10/0x10 [ 10.258276] ret_from_fork_asm+0x1a/0x30 [ 10.258305] </TASK> [ 10.258315] [ 10.267156] Allocated by task 1: [ 10.267296] kasan_save_stack+0x45/0x70 [ 10.267505] kasan_save_track+0x18/0x40 [ 10.267819] kasan_save_alloc_info+0x3b/0x50 [ 10.268089] __kasan_kmalloc+0xb7/0xc0 [ 10.268269] __kmalloc_node_track_caller_noprof+0x1cb/0x500 [ 10.268462] kvasprintf+0xc5/0x150 [ 10.268682] __kthread_create_on_node+0x18b/0x3a0 [ 10.269035] kthread_create_on_node+0xab/0xe0 [ 10.269262] create_worker+0x3e5/0x7b0 [ 10.269458] alloc_unbound_pwq+0x8ea/0xdb0 [ 10.269694] apply_wqattrs_prepare+0x332/0xd20 [ 10.270102] apply_workqueue_attrs_locked+0x4d/0xa0 [ 10.270363] alloc_workqueue+0xcc7/0x1ad0 [ 10.270573] latency_fsnotify_init+0x1b/0x50 [ 10.270764] do_one_initcall+0xd8/0x370 [ 10.270920] kernel_init_freeable+0x420/0x6f0 [ 10.271139] kernel_init+0x23/0x1e0 [ 10.271321] ret_from_fork+0x116/0x1d0 [ 10.271483] ret_from_fork_asm+0x1a/0x30 [ 10.271864] [ 10.271962] The buggy address belongs to the object at ffff888101c55f20 [ 10.271962] which belongs to the cache kmalloc-16 of size 16 [ 10.272448] The buggy address is located 18 bytes to the right of [ 10.272448] allocated 13-byte region [ffff888101c55f20, ffff888101c55f2d) [ 10.273015] [ 10.273138] The buggy address belongs to the physical page: [ 10.273441] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101c55 [ 10.273927] flags: 0x200000000000000(node=0|zone=2) [ 10.274189] page_type: f5(slab) [ 10.274354] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 10.274726] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 10.275251] page dumped because: kasan: bad access detected [ 10.275498] [ 10.275571] Memory state around the buggy address: [ 10.275877] ffff888101c55e00: 00 05 fc fc 00 00 fc fc 00 06 fc fc 00 06 fc fc [ 10.276243] ffff888101c55e80: 00 00 fc fc 00 02 fc fc 00 02 fc fc 00 06 fc fc [ 10.276520] >ffff888101c55f00: 00 06 fc fc 00 05 fc fc 00 07 fc fc fc fc fc fc [ 10.276929] ^ [ 10.277200] ffff888101c55f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.277521] ffff888101c56000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.277918] ==================================================================