Date
July 11, 2025, 10:11 a.m.
| Environment | |
|---|---|
| e850-96 | |
| qemu-arm64 | |
| qemu-x86_64 |
[ 47.475274] ================================================================== [ 47.481976] BUG: KASAN: double-free in kfree_sensitive+0x3c/0xb0 [ 47.487962] Free of addr ffff0008030dafc0 by task kunit_try_catch/276 [ 47.494385] [ 47.495870] CPU: 0 UID: 0 PID: 276 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250711 #1 PREEMPT [ 47.495925] Tainted: [B]=BAD_PAGE, [N]=TEST [ 47.495942] Hardware name: WinLink E850-96 board (DT) [ 47.495963] Call trace: [ 47.495977] show_stack+0x20/0x38 (C) [ 47.496009] dump_stack_lvl+0x8c/0xd0 [ 47.496041] print_report+0x118/0x5d0 [ 47.496068] kasan_report_invalid_free+0xc0/0xe8 [ 47.496098] check_slab_allocation+0xd4/0x108 [ 47.496134] __kasan_slab_pre_free+0x2c/0x48 [ 47.496168] kfree+0xe8/0x3c8 [ 47.496200] kfree_sensitive+0x3c/0xb0 [ 47.496233] kmalloc_double_kzfree+0x168/0x308 [ 47.496268] kunit_try_run_case+0x170/0x3f0 [ 47.496303] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 47.496336] kthread+0x328/0x630 [ 47.496364] ret_from_fork+0x10/0x20 [ 47.496395] [ 47.571729] Allocated by task 276: [ 47.575115] kasan_save_stack+0x3c/0x68 [ 47.578932] kasan_save_track+0x20/0x40 [ 47.582752] kasan_save_alloc_info+0x40/0x58 [ 47.587005] __kasan_kmalloc+0xd4/0xd8 [ 47.590738] __kmalloc_cache_noprof+0x16c/0x3c0 [ 47.595251] kmalloc_double_kzfree+0xb8/0x308 [ 47.599592] kunit_try_run_case+0x170/0x3f0 [ 47.603758] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 47.609227] kthread+0x328/0x630 [ 47.612439] ret_from_fork+0x10/0x20 [ 47.615998] [ 47.617473] Freed by task 276: [ 47.620511] kasan_save_stack+0x3c/0x68 [ 47.624331] kasan_save_track+0x20/0x40 [ 47.628150] kasan_save_free_info+0x4c/0x78 [ 47.632317] __kasan_slab_free+0x6c/0x98 [ 47.636223] kfree+0x214/0x3c8 [ 47.639261] kfree_sensitive+0x80/0xb0 [ 47.642995] kmalloc_double_kzfree+0x11c/0x308 [ 47.647421] kunit_try_run_case+0x170/0x3f0 [ 47.651587] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 47.657056] kthread+0x328/0x630 [ 47.660268] ret_from_fork+0x10/0x20 [ 47.663827] [ 47.665304] The buggy address belongs to the object at ffff0008030dafc0 [ 47.665304] which belongs to the cache kmalloc-16 of size 16 [ 47.677630] The buggy address is located 0 bytes inside of [ 47.677630] 16-byte region [ffff0008030dafc0, ffff0008030dafd0) [ 47.689086] [ 47.690566] The buggy address belongs to the physical page: [ 47.696121] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8830da [ 47.704106] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 47.710616] page_type: f5(slab) [ 47.713753] raw: 0bfffe0000000000 ffff000800002640 dead000000000122 0000000000000000 [ 47.721472] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 47.729192] page dumped because: kasan: bad access detected [ 47.734746] [ 47.736221] Memory state around the buggy address: [ 47.741001] ffff0008030dae80: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 47.748204] ffff0008030daf00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 47.755412] >ffff0008030daf80: fa fb fc fc fa fb fc fc fa fb fc fc fc fc fc fc [ 47.762610] ^ [ 47.767910] ffff0008030db000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 47.775113] ffff0008030db080: 00 fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 [ 47.782315] ==================================================================
[ 30.688877] ================================================================== [ 30.689133] BUG: KASAN: double-free in kfree_sensitive+0x3c/0xb0 [ 30.689185] Free of addr fff00000c918c680 by task kunit_try_catch/223 [ 30.689244] [ 30.689276] CPU: 1 UID: 0 PID: 223 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250711 #1 PREEMPT [ 30.689433] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.689489] Hardware name: linux,dummy-virt (DT) [ 30.689568] Call trace: [ 30.689669] show_stack+0x20/0x38 (C) [ 30.689755] dump_stack_lvl+0x8c/0xd0 [ 30.689843] print_report+0x118/0x5d0 [ 30.689933] kasan_report_invalid_free+0xc0/0xe8 [ 30.690047] check_slab_allocation+0xd4/0x108 [ 30.690147] __kasan_slab_pre_free+0x2c/0x48 [ 30.690255] kfree+0xe8/0x3c8 [ 30.690342] kfree_sensitive+0x3c/0xb0 [ 30.690413] kmalloc_double_kzfree+0x168/0x308 [ 30.690481] kunit_try_run_case+0x170/0x3f0 [ 30.690529] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.690577] kthread+0x328/0x630 [ 30.690619] ret_from_fork+0x10/0x20 [ 30.690668] [ 30.690976] Allocated by task 223: [ 30.691053] kasan_save_stack+0x3c/0x68 [ 30.691147] kasan_save_track+0x20/0x40 [ 30.691254] kasan_save_alloc_info+0x40/0x58 [ 30.691341] __kasan_kmalloc+0xd4/0xd8 [ 30.691438] __kmalloc_cache_noprof+0x16c/0x3c0 [ 30.691543] kmalloc_double_kzfree+0xb8/0x308 [ 30.691630] kunit_try_run_case+0x170/0x3f0 [ 30.691757] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.691826] kthread+0x328/0x630 [ 30.691861] ret_from_fork+0x10/0x20 [ 30.691905] [ 30.691959] Freed by task 223: [ 30.692195] kasan_save_stack+0x3c/0x68 [ 30.692247] kasan_save_track+0x20/0x40 [ 30.692286] kasan_save_free_info+0x4c/0x78 [ 30.692558] __kasan_slab_free+0x6c/0x98 [ 30.692717] kfree+0x214/0x3c8 [ 30.692859] kfree_sensitive+0x80/0xb0 [ 30.692940] kmalloc_double_kzfree+0x11c/0x308 [ 30.692993] kunit_try_run_case+0x170/0x3f0 [ 30.693040] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.693082] kthread+0x328/0x630 [ 30.693114] ret_from_fork+0x10/0x20 [ 30.693159] [ 30.693180] The buggy address belongs to the object at fff00000c918c680 [ 30.693180] which belongs to the cache kmalloc-16 of size 16 [ 30.693244] The buggy address is located 0 bytes inside of [ 30.693244] 16-byte region [fff00000c918c680, fff00000c918c690) [ 30.693307] [ 30.693341] The buggy address belongs to the physical page: [ 30.693372] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10918c [ 30.693426] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.693477] page_type: f5(slab) [ 30.693516] raw: 0bfffe0000000000 fff00000c0001640 dead000000000100 dead000000000122 [ 30.693566] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 30.693606] page dumped because: kasan: bad access detected [ 30.693636] [ 30.693654] Memory state around the buggy address: [ 30.693687] fff00000c918c580: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 30.693756] fff00000c918c600: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 30.693852] >fff00000c918c680: fa fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.694001] ^ [ 30.694082] fff00000c918c700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.694135] fff00000c918c780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.694198] ==================================================================
[ 24.135998] ================================================================== [ 24.136466] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90 [ 24.136742] Free of addr ffff888104c83b60 by task kunit_try_catch/242 [ 24.136965] [ 24.137049] CPU: 0 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250711 #1 PREEMPT(voluntary) [ 24.137098] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.137111] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.137132] Call Trace: [ 24.137146] <TASK> [ 24.137161] dump_stack_lvl+0x73/0xb0 [ 24.137190] print_report+0xd1/0x610 [ 24.137212] ? __virt_addr_valid+0x1db/0x2d0 [ 24.137237] ? kasan_complete_mode_report_info+0x64/0x200 [ 24.137338] ? kfree_sensitive+0x2e/0x90 [ 24.137368] kasan_report_invalid_free+0x10a/0x130 [ 24.137392] ? kfree_sensitive+0x2e/0x90 [ 24.137417] ? kfree_sensitive+0x2e/0x90 [ 24.137457] check_slab_allocation+0x101/0x130 [ 24.137478] __kasan_slab_pre_free+0x28/0x40 [ 24.137498] kfree+0xf0/0x3f0 [ 24.137520] ? kfree_sensitive+0x2e/0x90 [ 24.137545] kfree_sensitive+0x2e/0x90 [ 24.137568] kmalloc_double_kzfree+0x19c/0x350 [ 24.137590] ? __pfx_kmalloc_double_kzfree+0x10/0x10 [ 24.137613] ? __schedule+0x10cc/0x2b60 [ 24.137637] ? __pfx_read_tsc+0x10/0x10 [ 24.137658] ? ktime_get_ts64+0x86/0x230 [ 24.137683] kunit_try_run_case+0x1a5/0x480 [ 24.137705] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.137725] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.137757] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.137780] ? __kthread_parkme+0x82/0x180 [ 24.137801] ? preempt_count_sub+0x50/0x80 [ 24.137824] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.137845] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.137869] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.137894] kthread+0x337/0x6f0 [ 24.137913] ? trace_preempt_on+0x20/0xc0 [ 24.137936] ? __pfx_kthread+0x10/0x10 [ 24.137957] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.137978] ? calculate_sigpending+0x7b/0xa0 [ 24.138002] ? __pfx_kthread+0x10/0x10 [ 24.138024] ret_from_fork+0x116/0x1d0 [ 24.138043] ? __pfx_kthread+0x10/0x10 [ 24.138063] ret_from_fork_asm+0x1a/0x30 [ 24.138093] </TASK> [ 24.138103] [ 24.145627] Allocated by task 242: [ 24.145820] kasan_save_stack+0x45/0x70 [ 24.146026] kasan_save_track+0x18/0x40 [ 24.146212] kasan_save_alloc_info+0x3b/0x50 [ 24.146652] __kasan_kmalloc+0xb7/0xc0 [ 24.146859] __kmalloc_cache_noprof+0x189/0x420 [ 24.147080] kmalloc_double_kzfree+0xa9/0x350 [ 24.147360] kunit_try_run_case+0x1a5/0x480 [ 24.147558] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.147809] kthread+0x337/0x6f0 [ 24.147974] ret_from_fork+0x116/0x1d0 [ 24.148151] ret_from_fork_asm+0x1a/0x30 [ 24.148419] [ 24.148520] Freed by task 242: [ 24.148662] kasan_save_stack+0x45/0x70 [ 24.148837] kasan_save_track+0x18/0x40 [ 24.148997] kasan_save_free_info+0x3f/0x60 [ 24.149184] __kasan_slab_free+0x56/0x70 [ 24.149422] kfree+0x222/0x3f0 [ 24.149607] kfree_sensitive+0x67/0x90 [ 24.149781] kmalloc_double_kzfree+0x12b/0x350 [ 24.149966] kunit_try_run_case+0x1a5/0x480 [ 24.150151] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.150552] kthread+0x337/0x6f0 [ 24.150730] ret_from_fork+0x116/0x1d0 [ 24.150933] ret_from_fork_asm+0x1a/0x30 [ 24.151084] [ 24.151175] The buggy address belongs to the object at ffff888104c83b60 [ 24.151175] which belongs to the cache kmalloc-16 of size 16 [ 24.151800] The buggy address is located 0 bytes inside of [ 24.151800] 16-byte region [ffff888104c83b60, ffff888104c83b70) [ 24.152145] [ 24.152217] The buggy address belongs to the physical page: [ 24.152483] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104c83 [ 24.152724] flags: 0x200000000000000(node=0|zone=2) [ 24.152931] page_type: f5(slab) [ 24.153092] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 24.153515] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 24.153856] page dumped because: kasan: bad access detected [ 24.154098] [ 24.154184] Memory state around the buggy address: [ 24.154657] ffff888104c83a00: fa fb fc fc fa fb fc fc fa fb fc fc 00 04 fc fc [ 24.154947] ffff888104c83a80: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 24.155199] >ffff888104c83b00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 24.155497] ^ [ 24.155688] ffff888104c83b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.156014] ffff888104c83c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.156389] ==================================================================