Date
July 17, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.028202] ================================================================== [ 15.028263] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 15.028317] Read of size 1 at addr fff00000c433eb9f by task kunit_try_catch/139 [ 15.028537] [ 15.028602] CPU: 0 UID: 0 PID: 139 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.028688] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.028714] Hardware name: linux,dummy-virt (DT) [ 15.028743] Call trace: [ 15.028764] show_stack+0x20/0x38 (C) [ 15.029457] dump_stack_lvl+0x8c/0xd0 [ 15.029810] print_report+0x118/0x5d0 [ 15.029867] kasan_report+0xdc/0x128 [ 15.029912] __asan_report_load1_noabort+0x20/0x30 [ 15.030287] kmalloc_oob_left+0x2ec/0x320 [ 15.030384] kunit_try_run_case+0x170/0x3f0 [ 15.030697] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.030907] kthread+0x328/0x630 [ 15.031073] ret_from_fork+0x10/0x20 [ 15.031182] [ 15.031199] Allocated by task 9: [ 15.031484] kasan_save_stack+0x3c/0x68 [ 15.031726] kasan_save_track+0x20/0x40 [ 15.031915] kasan_save_alloc_info+0x40/0x58 [ 15.031971] __kasan_kmalloc+0xd4/0xd8 [ 15.032017] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 15.032065] kvasprintf+0xe0/0x180 [ 15.032135] __kthread_create_on_node+0x16c/0x350 [ 15.032196] kthread_create_on_node+0xe4/0x130 [ 15.032233] create_worker+0x380/0x6b8 [ 15.032276] worker_thread+0x808/0xf38 [ 15.032309] kthread+0x328/0x630 [ 15.032355] ret_from_fork+0x10/0x20 [ 15.032390] [ 15.032418] The buggy address belongs to the object at fff00000c433eb80 [ 15.032418] which belongs to the cache kmalloc-16 of size 16 [ 15.032488] The buggy address is located 19 bytes to the right of [ 15.032488] allocated 12-byte region [fff00000c433eb80, fff00000c433eb8c) [ 15.032561] [ 15.032594] The buggy address belongs to the physical page: [ 15.032625] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10433e [ 15.032677] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.032735] page_type: f5(slab) [ 15.032787] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 15.033344] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 15.033599] page dumped because: kasan: bad access detected [ 15.033666] [ 15.033712] Memory state around the buggy address: [ 15.033804] fff00000c433ea80: fa fb fc fc 00 05 fc fc fa fb fc fc fa fb fc fc [ 15.033868] fff00000c433eb00: 00 07 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 15.033918] >fff00000c433eb80: 00 04 fc fc 00 07 fc fc fc fc fc fc fc fc fc fc [ 15.033956] ^ [ 15.033998] fff00000c433ec00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.034039] fff00000c433ec80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.034077] ==================================================================
[ 12.364623] ================================================================== [ 12.365095] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 12.365644] Read of size 1 at addr ffff88810254a25f by task kunit_try_catch/155 [ 12.366018] [ 12.366196] CPU: 1 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.366241] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.366252] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.366272] Call Trace: [ 12.366408] <TASK> [ 12.366428] dump_stack_lvl+0x73/0xb0 [ 12.366456] print_report+0xd1/0x610 [ 12.366478] ? __virt_addr_valid+0x1db/0x2d0 [ 12.366500] ? kmalloc_oob_left+0x361/0x3c0 [ 12.366520] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.366543] ? kmalloc_oob_left+0x361/0x3c0 [ 12.366577] kasan_report+0x141/0x180 [ 12.366598] ? kmalloc_oob_left+0x361/0x3c0 [ 12.366624] __asan_report_load1_noabort+0x18/0x20 [ 12.366649] kmalloc_oob_left+0x361/0x3c0 [ 12.366670] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 12.366694] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 12.366720] kunit_try_run_case+0x1a5/0x480 [ 12.366744] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.366766] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.366790] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.366813] ? __kthread_parkme+0x82/0x180 [ 12.366832] ? preempt_count_sub+0x50/0x80 [ 12.366856] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.366880] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.366904] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.366929] kthread+0x337/0x6f0 [ 12.366948] ? trace_preempt_on+0x20/0xc0 [ 12.366970] ? __pfx_kthread+0x10/0x10 [ 12.366991] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.367012] ? calculate_sigpending+0x7b/0xa0 [ 12.367035] ? __pfx_kthread+0x10/0x10 [ 12.367056] ret_from_fork+0x116/0x1d0 [ 12.367074] ? __pfx_kthread+0x10/0x10 [ 12.367094] ret_from_fork_asm+0x1a/0x30 [ 12.367124] </TASK> [ 12.367134] [ 12.375525] Allocated by task 1: [ 12.375722] kasan_save_stack+0x45/0x70 [ 12.376109] kasan_save_track+0x18/0x40 [ 12.376394] kasan_save_alloc_info+0x3b/0x50 [ 12.376590] __kasan_kmalloc+0xb7/0xc0 [ 12.376886] __kmalloc_noprof+0x1c9/0x500 [ 12.377131] x509_fabricate_name.isra.0+0x3c2/0x830 [ 12.377411] x509_note_subject+0x9b/0xf0 [ 12.377646] asn1_ber_decoder+0xe13/0x1c60 [ 12.377836] x509_cert_parse+0x1be/0x830 [ 12.377998] x509_key_preparse+0x68/0x8a0 [ 12.378195] asymmetric_key_preparse+0xb1/0x160 [ 12.378388] __key_create_or_update+0x43d/0xcc0 [ 12.378921] key_create_or_update+0x17/0x20 [ 12.379108] x509_load_certificate_list+0x174/0x200 [ 12.379444] regulatory_init_db+0xee/0x3a0 [ 12.379755] do_one_initcall+0xd8/0x370 [ 12.379909] kernel_init_freeable+0x420/0x6f0 [ 12.380239] kernel_init+0x23/0x1e0 [ 12.380514] ret_from_fork+0x116/0x1d0 [ 12.380761] ret_from_fork_asm+0x1a/0x30 [ 12.380953] [ 12.381145] Freed by task 1: [ 12.381284] kasan_save_stack+0x45/0x70 [ 12.381489] kasan_save_track+0x18/0x40 [ 12.381892] kasan_save_free_info+0x3f/0x60 [ 12.382165] __kasan_slab_free+0x56/0x70 [ 12.382308] kfree+0x222/0x3f0 [ 12.382627] x509_free_certificate.part.0+0xa9/0x140 [ 12.382848] x509_free_certificate+0x17/0x30 [ 12.383046] x509_key_preparse+0x5c9/0x8a0 [ 12.383227] asymmetric_key_preparse+0xb1/0x160 [ 12.383428] __key_create_or_update+0x43d/0xcc0 [ 12.383862] key_create_or_update+0x17/0x20 [ 12.384131] x509_load_certificate_list+0x174/0x200 [ 12.384311] regulatory_init_db+0xee/0x3a0 [ 12.384737] do_one_initcall+0xd8/0x370 [ 12.384926] kernel_init_freeable+0x420/0x6f0 [ 12.385136] kernel_init+0x23/0x1e0 [ 12.385410] ret_from_fork+0x116/0x1d0 [ 12.385671] ret_from_fork_asm+0x1a/0x30 [ 12.385998] [ 12.386105] The buggy address belongs to the object at ffff88810254a240 [ 12.386105] which belongs to the cache kmalloc-16 of size 16 [ 12.386717] The buggy address is located 15 bytes to the right of [ 12.386717] allocated 16-byte region [ffff88810254a240, ffff88810254a250) [ 12.387217] [ 12.387310] The buggy address belongs to the physical page: [ 12.387575] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10254a [ 12.388173] flags: 0x200000000000000(node=0|zone=2) [ 12.388525] page_type: f5(slab) [ 12.388672] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 12.389097] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 12.389489] page dumped because: kasan: bad access detected [ 12.389732] [ 12.389897] Memory state around the buggy address: [ 12.390226] ffff88810254a100: 00 02 fc fc 00 03 fc fc fa fb fc fc 00 02 fc fc [ 12.390632] ffff88810254a180: 00 05 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc [ 12.390940] >ffff88810254a200: 00 02 fc fc fa fb fc fc fa fb fc fc 00 07 fc fc [ 12.391226] ^ [ 12.391484] ffff88810254a280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.391994] ffff88810254a300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.392365] ==================================================================