Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.142158] ================================================================== [ 15.142245] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 15.142302] Read of size 1 at addr fff00000c3fc613f by task kunit_try_catch/138 [ 15.142351] [ 15.142382] CPU: 0 UID: 0 PID: 138 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.142478] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.142505] Hardware name: linux,dummy-virt (DT) [ 15.142628] Call trace: [ 15.142657] show_stack+0x20/0x38 (C) [ 15.142717] dump_stack_lvl+0x8c/0xd0 [ 15.142771] print_report+0x118/0x5d0 [ 15.142817] kasan_report+0xdc/0x128 [ 15.142862] __asan_report_load1_noabort+0x20/0x30 [ 15.142911] kmalloc_oob_left+0x2ec/0x320 [ 15.142954] kunit_try_run_case+0x170/0x3f0 [ 15.143029] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.143082] kthread+0x328/0x630 [ 15.143122] ret_from_fork+0x10/0x20 [ 15.143169] [ 15.143186] Allocated by task 26: [ 15.143371] kasan_save_stack+0x3c/0x68 [ 15.143488] kasan_save_track+0x20/0x40 [ 15.143525] kasan_save_alloc_info+0x40/0x58 [ 15.143640] __kasan_kmalloc+0xd4/0xd8 [ 15.143770] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 15.143814] kstrdup+0x54/0xc8 [ 15.143870] devtmpfs_work_loop+0x6f8/0xa58 [ 15.143910] devtmpfsd+0x50/0x58 [ 15.143943] kthread+0x328/0x630 [ 15.143973] ret_from_fork+0x10/0x20 [ 15.144007] [ 15.144040] Freed by task 26: [ 15.144076] kasan_save_stack+0x3c/0x68 [ 15.144112] kasan_save_track+0x20/0x40 [ 15.144147] kasan_save_free_info+0x4c/0x78 [ 15.144188] __kasan_slab_free+0x6c/0x98 [ 15.144225] kfree+0x214/0x3c8 [ 15.144260] devtmpfs_work_loop+0x804/0xa58 [ 15.144573] devtmpfsd+0x50/0x58 [ 15.144611] kthread+0x328/0x630 [ 15.144744] ret_from_fork+0x10/0x20 [ 15.144803] [ 15.144909] The buggy address belongs to the object at fff00000c3fc6120 [ 15.144909] which belongs to the cache kmalloc-16 of size 16 [ 15.145020] The buggy address is located 15 bytes to the right of [ 15.145020] allocated 16-byte region [fff00000c3fc6120, fff00000c3fc6130) [ 15.145177] [ 15.145216] The buggy address belongs to the physical page: [ 15.145264] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103fc6 [ 15.145323] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.145387] page_type: f5(slab) [ 15.145425] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 15.145508] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 15.145548] page dumped because: kasan: bad access detected [ 15.145577] [ 15.145594] Memory state around the buggy address: [ 15.145625] fff00000c3fc6000: 00 05 fc fc 00 00 fc fc 00 06 fc fc 00 06 fc fc [ 15.145676] fff00000c3fc6080: 00 00 fc fc 00 02 fc fc 00 02 fc fc 00 06 fc fc [ 15.145854] >fff00000c3fc6100: 00 06 fc fc fa fb fc fc 00 07 fc fc fc fc fc fc [ 15.145897] ^ [ 15.146066] fff00000c3fc6180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.146269] fff00000c3fc6200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.146412] ==================================================================
[ 11.605018] ================================================================== [ 11.605544] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 11.605885] Read of size 1 at addr ffff888101d1f4bf by task kunit_try_catch/155 [ 11.606190] [ 11.606300] CPU: 0 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 11.606343] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.606354] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.606375] Call Trace: [ 11.606386] <TASK> [ 11.606402] dump_stack_lvl+0x73/0xb0 [ 11.606454] print_report+0xd1/0x610 [ 11.606476] ? __virt_addr_valid+0x1db/0x2d0 [ 11.606498] ? kmalloc_oob_left+0x361/0x3c0 [ 11.606517] ? kasan_complete_mode_report_info+0x64/0x200 [ 11.606537] ? kmalloc_oob_left+0x361/0x3c0 [ 11.606557] kasan_report+0x141/0x180 [ 11.606578] ? kmalloc_oob_left+0x361/0x3c0 [ 11.606622] __asan_report_load1_noabort+0x18/0x20 [ 11.606644] kmalloc_oob_left+0x361/0x3c0 [ 11.606686] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 11.606707] ? __schedule+0x10cc/0x2b60 [ 11.606729] ? __pfx_read_tsc+0x10/0x10 [ 11.606749] ? ktime_get_ts64+0x86/0x230 [ 11.606772] kunit_try_run_case+0x1a5/0x480 [ 11.606796] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.606816] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.606838] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.606860] ? __kthread_parkme+0x82/0x180 [ 11.606879] ? preempt_count_sub+0x50/0x80 [ 11.606901] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.606931] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.606953] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.606974] kthread+0x337/0x6f0 [ 11.606993] ? trace_preempt_on+0x20/0xc0 [ 11.607014] ? __pfx_kthread+0x10/0x10 [ 11.607033] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.607053] ? calculate_sigpending+0x7b/0xa0 [ 11.607103] ? __pfx_kthread+0x10/0x10 [ 11.607123] ret_from_fork+0x116/0x1d0 [ 11.607140] ? __pfx_kthread+0x10/0x10 [ 11.607159] ret_from_fork_asm+0x1a/0x30 [ 11.607189] </TASK> [ 11.607198] [ 11.613766] Allocated by task 1: [ 11.613929] kasan_save_stack+0x45/0x70 [ 11.614129] kasan_save_track+0x18/0x40 [ 11.614328] kasan_save_alloc_info+0x3b/0x50 [ 11.614540] __kasan_kmalloc+0xb7/0xc0 [ 11.614727] __kmalloc_node_track_caller_noprof+0x1cb/0x500 [ 11.614996] kvasprintf+0xc5/0x150 [ 11.615184] __kthread_create_on_node+0x18b/0x3a0 [ 11.615374] kthread_create_on_node+0xab/0xe0 [ 11.615551] cryptomgr_notify+0x704/0x9f0 [ 11.615699] notifier_call_chain+0xcb/0x250 [ 11.615873] blocking_notifier_call_chain+0x64/0x90 [ 11.616123] crypto_alg_mod_lookup+0x21f/0x440 [ 11.616328] crypto_alloc_tfm_node+0xc5/0x1f0 [ 11.616515] crypto_alloc_sig+0x23/0x30 [ 11.616721] public_key_verify_signature+0x208/0x9f0 [ 11.616951] x509_check_for_self_signed+0x2cb/0x480 [ 11.617183] x509_cert_parse+0x59c/0x830 [ 11.617388] x509_key_preparse+0x68/0x8a0 [ 11.617577] asymmetric_key_preparse+0xb1/0x160 [ 11.617804] __key_create_or_update+0x43d/0xcc0 [ 11.618049] key_create_or_update+0x17/0x20 [ 11.618229] x509_load_certificate_list+0x174/0x200 [ 11.618449] regulatory_init_db+0xee/0x3a0 [ 11.618634] do_one_initcall+0xd8/0x370 [ 11.618849] kernel_init_freeable+0x420/0x6f0 [ 11.619006] kernel_init+0x23/0x1e0 [ 11.619136] ret_from_fork+0x116/0x1d0 [ 11.619266] ret_from_fork_asm+0x1a/0x30 [ 11.619402] [ 11.619494] Freed by task 0: [ 11.619645] kasan_save_stack+0x45/0x70 [ 11.619861] kasan_save_track+0x18/0x40 [ 11.620068] kasan_save_free_info+0x3f/0x60 [ 11.620278] __kasan_slab_free+0x56/0x70 [ 11.620473] kfree+0x222/0x3f0 [ 11.620660] free_kthread_struct+0xeb/0x150 [ 11.620884] free_task+0xf3/0x130 [ 11.621078] __put_task_struct+0x1c8/0x480 [ 11.621280] delayed_put_task_struct+0x10a/0x150 [ 11.621501] rcu_core+0x66f/0x1c40 [ 11.621719] rcu_core_si+0x12/0x20 [ 11.621893] handle_softirqs+0x209/0x730 [ 11.622077] __irq_exit_rcu+0xc9/0x110 [ 11.622278] irq_exit_rcu+0x12/0x20 [ 11.622423] sysvec_apic_timer_interrupt+0x81/0x90 [ 11.622588] asm_sysvec_apic_timer_interrupt+0x1f/0x30 [ 11.622842] [ 11.622955] The buggy address belongs to the object at ffff888101d1f4a0 [ 11.622955] which belongs to the cache kmalloc-16 of size 16 [ 11.623485] The buggy address is located 15 bytes to the right of [ 11.623485] allocated 16-byte region [ffff888101d1f4a0, ffff888101d1f4b0) [ 11.624000] [ 11.624096] The buggy address belongs to the physical page: [ 11.624349] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101d1f [ 11.624620] flags: 0x200000000000000(node=0|zone=2) [ 11.624809] page_type: f5(slab) [ 11.624937] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 11.625278] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 11.625616] page dumped because: kasan: bad access detected [ 11.625886] [ 11.626009] Memory state around the buggy address: [ 11.626213] ffff888101d1f380: fa fb fc fc 00 02 fc fc 00 05 fc fc 00 02 fc fc [ 11.626428] ffff888101d1f400: 00 02 fc fc 00 02 fc fc 00 02 fc fc fa fb fc fc [ 11.626641] >ffff888101d1f480: fa fb fc fc fa fb fc fc 00 07 fc fc fc fc fc fc [ 11.626961] ^ [ 11.627199] ffff888101d1f500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.627504] ffff888101d1f580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.627832] ==================================================================