Date
July 3, 2025, 11:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.159342] ================================================================== [ 19.159482] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 19.159677] Read of size 1 at addr fff00000c619149f by task kunit_try_catch/138 [ 19.159866] [ 19.160310] CPU: 0 UID: 0 PID: 138 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.160795] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.160852] Hardware name: linux,dummy-virt (DT) [ 19.160924] Call trace: [ 19.160974] show_stack+0x20/0x38 (C) [ 19.161104] dump_stack_lvl+0x8c/0xd0 [ 19.161212] print_report+0x118/0x608 [ 19.161313] kasan_report+0xdc/0x128 [ 19.161905] __asan_report_load1_noabort+0x20/0x30 [ 19.162509] kmalloc_oob_left+0x2ec/0x320 [ 19.162966] kunit_try_run_case+0x170/0x3f0 [ 19.163341] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.163911] kthread+0x328/0x630 [ 19.164092] ret_from_fork+0x10/0x20 [ 19.164220] [ 19.164261] Allocated by task 10: [ 19.164573] kasan_save_stack+0x3c/0x68 [ 19.165151] kasan_save_track+0x20/0x40 [ 19.165265] kasan_save_alloc_info+0x40/0x58 [ 19.165708] __kasan_kmalloc+0xd4/0xd8 [ 19.165988] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 19.166130] kvasprintf+0xe0/0x180 [ 19.166203] __kthread_create_on_node+0x16c/0x350 [ 19.166526] kthread_create_on_node+0xe4/0x130 [ 19.166631] create_worker+0x380/0x6b8 [ 19.166712] worker_thread+0x808/0xf38 [ 19.167097] kthread+0x328/0x630 [ 19.167214] ret_from_fork+0x10/0x20 [ 19.167295] [ 19.167337] The buggy address belongs to the object at fff00000c6191480 [ 19.167337] which belongs to the cache kmalloc-16 of size 16 [ 19.167954] The buggy address is located 19 bytes to the right of [ 19.167954] allocated 12-byte region [fff00000c6191480, fff00000c619148c) [ 19.168395] [ 19.168514] The buggy address belongs to the physical page: [ 19.168771] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106191 [ 19.168900] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.169098] page_type: f5(slab) [ 19.169192] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 19.169574] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 19.169919] page dumped because: kasan: bad access detected [ 19.170014] [ 19.170072] Memory state around the buggy address: [ 19.170137] fff00000c6191380: 00 05 fc fc fa fb fc fc 00 02 fc fc fa fb fc fc [ 19.170217] fff00000c6191400: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 19.170304] >fff00000c6191480: 00 04 fc fc 00 07 fc fc fc fc fc fc fc fc fc fc [ 19.170911] ^ [ 19.171093] fff00000c6191500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.171446] fff00000c6191580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.171554] ==================================================================
[ 10.873451] ================================================================== [ 10.873990] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 10.874552] Read of size 1 at addr ffff8881019d1a7f by task kunit_try_catch/155 [ 10.874823] [ 10.874964] CPU: 1 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 10.875023] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.875034] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.875067] Call Trace: [ 10.875079] <TASK> [ 10.875112] dump_stack_lvl+0x73/0xb0 [ 10.875166] print_report+0xd1/0x650 [ 10.875465] ? __virt_addr_valid+0x1db/0x2d0 [ 10.875491] ? kmalloc_oob_left+0x361/0x3c0 [ 10.875511] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.875531] ? kmalloc_oob_left+0x361/0x3c0 [ 10.875551] kasan_report+0x141/0x180 [ 10.875571] ? kmalloc_oob_left+0x361/0x3c0 [ 10.875595] __asan_report_load1_noabort+0x18/0x20 [ 10.875618] kmalloc_oob_left+0x361/0x3c0 [ 10.875638] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 10.875659] ? __schedule+0x10cc/0x2b60 [ 10.875680] ? __pfx_read_tsc+0x10/0x10 [ 10.875700] ? ktime_get_ts64+0x86/0x230 [ 10.875724] kunit_try_run_case+0x1a5/0x480 [ 10.875748] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.875768] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.875789] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.875810] ? __kthread_parkme+0x82/0x180 [ 10.875830] ? preempt_count_sub+0x50/0x80 [ 10.875852] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.875874] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.875895] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.875916] kthread+0x337/0x6f0 [ 10.875934] ? trace_preempt_on+0x20/0xc0 [ 10.875956] ? __pfx_kthread+0x10/0x10 [ 10.875975] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.875994] ? calculate_sigpending+0x7b/0xa0 [ 10.876016] ? __pfx_kthread+0x10/0x10 [ 10.876036] ret_from_fork+0x116/0x1d0 [ 10.876053] ? __pfx_kthread+0x10/0x10 [ 10.876072] ret_from_fork_asm+0x1a/0x30 [ 10.876100] </TASK> [ 10.876111] [ 10.886808] Allocated by task 1: [ 10.886963] kasan_save_stack+0x45/0x70 [ 10.887138] kasan_save_track+0x18/0x40 [ 10.887676] kasan_save_alloc_info+0x3b/0x50 [ 10.887965] __kasan_kmalloc+0xb7/0xc0 [ 10.888157] __kmalloc_node_track_caller_noprof+0x1cb/0x500 [ 10.888632] kvasprintf+0xc5/0x150 [ 10.888897] __kthread_create_on_node+0x18b/0x3a0 [ 10.889100] kthread_create_on_node+0xab/0xe0 [ 10.889484] create_worker+0x3e5/0x7b0 [ 10.889681] alloc_unbound_pwq+0x8ea/0xdb0 [ 10.890115] apply_wqattrs_prepare+0x332/0xd20 [ 10.890380] apply_workqueue_attrs_locked+0x4d/0xa0 [ 10.891004] alloc_workqueue+0xcc7/0x1ad0 [ 10.891517] latency_fsnotify_init+0x1b/0x50 [ 10.891854] do_one_initcall+0xd8/0x370 [ 10.891994] kernel_init_freeable+0x420/0x6f0 [ 10.892162] kernel_init+0x23/0x1e0 [ 10.892374] ret_from_fork+0x116/0x1d0 [ 10.892781] ret_from_fork_asm+0x1a/0x30 [ 10.893305] [ 10.893490] The buggy address belongs to the object at ffff8881019d1a60 [ 10.893490] which belongs to the cache kmalloc-16 of size 16 [ 10.894762] The buggy address is located 18 bytes to the right of [ 10.894762] allocated 13-byte region [ffff8881019d1a60, ffff8881019d1a6d) [ 10.895902] [ 10.895980] The buggy address belongs to the physical page: [ 10.896187] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1019d1 [ 10.897041] flags: 0x200000000000000(node=0|zone=2) [ 10.897620] page_type: f5(slab) [ 10.897987] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 10.898817] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 10.899478] page dumped because: kasan: bad access detected [ 10.899658] [ 10.899729] Memory state around the buggy address: [ 10.899886] ffff8881019d1900: 00 03 fc fc fa fb fc fc 00 02 fc fc 00 05 fc fc [ 10.900105] ffff8881019d1980: 00 02 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc [ 10.900423] >ffff8881019d1a00: fa fb fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 10.900767] ^ [ 10.901002] ffff8881019d1a80: 00 07 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.901454] ffff8881019d1b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.901998] ==================================================================