Date
July 13, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.059855] ================================================================== [ 16.060177] BUG: KASAN: double-free in kfree_sensitive+0x3c/0xb0 [ 16.060455] Free of addr fff00000c5809560 by task kunit_try_catch/193 [ 16.060535] [ 16.060575] CPU: 0 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.060974] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.061026] Hardware name: linux,dummy-virt (DT) [ 16.061194] Call trace: [ 16.061232] show_stack+0x20/0x38 (C) [ 16.061939] dump_stack_lvl+0x8c/0xd0 [ 16.062142] print_report+0x118/0x5d0 [ 16.062862] kasan_report_invalid_free+0xc0/0xe8 [ 16.063401] check_slab_allocation+0xd4/0x108 [ 16.063547] __kasan_slab_pre_free+0x2c/0x48 [ 16.063625] kfree+0xe8/0x3c8 [ 16.063771] kfree_sensitive+0x3c/0xb0 [ 16.063835] kmalloc_double_kzfree+0x168/0x308 [ 16.063899] kunit_try_run_case+0x170/0x3f0 [ 16.064236] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.064429] kthread+0x328/0x630 [ 16.064535] ret_from_fork+0x10/0x20 [ 16.064688] [ 16.064737] Allocated by task 193: [ 16.064913] kasan_save_stack+0x3c/0x68 [ 16.064958] kasan_save_track+0x20/0x40 [ 16.064994] kasan_save_alloc_info+0x40/0x58 [ 16.065056] __kasan_kmalloc+0xd4/0xd8 [ 16.065091] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.065413] kmalloc_double_kzfree+0xb8/0x308 [ 16.065549] kunit_try_run_case+0x170/0x3f0 [ 16.065625] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.065700] kthread+0x328/0x630 [ 16.065821] ret_from_fork+0x10/0x20 [ 16.065912] [ 16.065974] Freed by task 193: [ 16.066067] kasan_save_stack+0x3c/0x68 [ 16.066108] kasan_save_track+0x20/0x40 [ 16.066145] kasan_save_free_info+0x4c/0x78 [ 16.066185] __kasan_slab_free+0x6c/0x98 [ 16.066243] kfree+0x214/0x3c8 [ 16.066315] kfree_sensitive+0x80/0xb0 [ 16.066365] kmalloc_double_kzfree+0x11c/0x308 [ 16.066413] kunit_try_run_case+0x170/0x3f0 [ 16.066451] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.066506] kthread+0x328/0x630 [ 16.066677] ret_from_fork+0x10/0x20 [ 16.066773] [ 16.066792] The buggy address belongs to the object at fff00000c5809560 [ 16.066792] which belongs to the cache kmalloc-16 of size 16 [ 16.066861] The buggy address is located 0 bytes inside of [ 16.066861] 16-byte region [fff00000c5809560, fff00000c5809570) [ 16.067265] [ 16.067326] The buggy address belongs to the physical page: [ 16.067379] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105809 [ 16.067505] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.067566] page_type: f5(slab) [ 16.067612] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 16.067957] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 16.068028] page dumped because: kasan: bad access detected [ 16.068322] [ 16.068371] Memory state around the buggy address: [ 16.068437] fff00000c5809400: 00 00 fc fc 00 00 fc fc 00 00 fc fc fa fb fc fc [ 16.068592] fff00000c5809480: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 16.068642] >fff00000c5809500: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 16.068682] ^ [ 16.068728] fff00000c5809580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.069067] fff00000c5809600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.069228] ==================================================================
[ 16.819144] ================================================================== [ 16.819226] BUG: KASAN: double-free in kfree_sensitive+0x3c/0xb0 [ 16.819290] Free of addr fff00000c44abac0 by task kunit_try_catch/193 [ 16.819352] [ 16.819448] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.819655] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.819700] Hardware name: linux,dummy-virt (DT) [ 16.819732] Call trace: [ 16.819753] show_stack+0x20/0x38 (C) [ 16.819805] dump_stack_lvl+0x8c/0xd0 [ 16.819850] print_report+0x118/0x5d0 [ 16.819896] kasan_report_invalid_free+0xc0/0xe8 [ 16.820293] check_slab_allocation+0xd4/0x108 [ 16.820398] __kasan_slab_pre_free+0x2c/0x48 [ 16.820494] kfree+0xe8/0x3c8 [ 16.820553] kfree_sensitive+0x3c/0xb0 [ 16.820600] kmalloc_double_kzfree+0x168/0x308 [ 16.820647] kunit_try_run_case+0x170/0x3f0 [ 16.820694] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.820756] kthread+0x328/0x630 [ 16.820796] ret_from_fork+0x10/0x20 [ 16.820843] [ 16.820870] Allocated by task 193: [ 16.820898] kasan_save_stack+0x3c/0x68 [ 16.820938] kasan_save_track+0x20/0x40 [ 16.820976] kasan_save_alloc_info+0x40/0x58 [ 16.821023] __kasan_kmalloc+0xd4/0xd8 [ 16.821060] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.821098] kmalloc_double_kzfree+0xb8/0x308 [ 16.821142] kunit_try_run_case+0x170/0x3f0 [ 16.821223] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.821277] kthread+0x328/0x630 [ 16.821313] ret_from_fork+0x10/0x20 [ 16.821356] [ 16.821373] Freed by task 193: [ 16.821398] kasan_save_stack+0x3c/0x68 [ 16.821445] kasan_save_track+0x20/0x40 [ 16.821489] kasan_save_free_info+0x4c/0x78 [ 16.821527] __kasan_slab_free+0x6c/0x98 [ 16.821564] kfree+0x214/0x3c8 [ 16.821596] kfree_sensitive+0x80/0xb0 [ 16.821641] kmalloc_double_kzfree+0x11c/0x308 [ 16.821689] kunit_try_run_case+0x170/0x3f0 [ 16.821737] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.821790] kthread+0x328/0x630 [ 16.821823] ret_from_fork+0x10/0x20 [ 16.821866] [ 16.821885] The buggy address belongs to the object at fff00000c44abac0 [ 16.821885] which belongs to the cache kmalloc-16 of size 16 [ 16.821942] The buggy address is located 0 bytes inside of [ 16.821942] 16-byte region [fff00000c44abac0, fff00000c44abad0) [ 16.822005] [ 16.822025] The buggy address belongs to the physical page: [ 16.822065] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1044ab [ 16.822119] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.822176] page_type: f5(slab) [ 16.822222] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 16.822273] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 16.822594] page dumped because: kasan: bad access detected [ 16.822686] [ 16.822726] Memory state around the buggy address: [ 16.822797] fff00000c44ab980: 00 00 fc fc 00 00 fc fc fa fb fc fc fa fb fc fc [ 16.822917] fff00000c44aba00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 16.823060] >fff00000c44aba80: fa fb fc fc fa fb fc fc fa fb fc fc fc fc fc fc [ 16.823147] ^ [ 16.823195] fff00000c44abb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.823237] fff00000c44abb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.823310] ==================================================================
[ 13.009340] ================================================================== [ 13.009990] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90 [ 13.010495] Free of addr ffff888101aa5dc0 by task kunit_try_catch/209 [ 13.010870] [ 13.011057] CPU: 1 UID: 0 PID: 209 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.011101] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.011112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.011132] Call Trace: [ 13.011145] <TASK> [ 13.011159] dump_stack_lvl+0x73/0xb0 [ 13.011188] print_report+0xd1/0x610 [ 13.011210] ? __virt_addr_valid+0x1db/0x2d0 [ 13.011234] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.011257] ? kfree_sensitive+0x2e/0x90 [ 13.011278] kasan_report_invalid_free+0x10a/0x130 [ 13.011303] ? kfree_sensitive+0x2e/0x90 [ 13.011324] ? kfree_sensitive+0x2e/0x90 [ 13.011344] check_slab_allocation+0x101/0x130 [ 13.011365] __kasan_slab_pre_free+0x28/0x40 [ 13.011387] kfree+0xf0/0x3f0 [ 13.011407] ? kfree_sensitive+0x2e/0x90 [ 13.011429] kfree_sensitive+0x2e/0x90 [ 13.011462] kmalloc_double_kzfree+0x19c/0x350 [ 13.011487] ? __pfx_kmalloc_double_kzfree+0x10/0x10 [ 13.011512] ? __schedule+0x10cc/0x2b60 [ 13.011533] ? __pfx_read_tsc+0x10/0x10 [ 13.011555] ? ktime_get_ts64+0x86/0x230 [ 13.011579] kunit_try_run_case+0x1a5/0x480 [ 13.011603] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.011638] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.011662] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.011686] ? __kthread_parkme+0x82/0x180 [ 13.011706] ? preempt_count_sub+0x50/0x80 [ 13.011731] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.011755] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.011779] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.011805] kthread+0x337/0x6f0 [ 13.011825] ? trace_preempt_on+0x20/0xc0 [ 13.011847] ? __pfx_kthread+0x10/0x10 [ 13.011868] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.011889] ? calculate_sigpending+0x7b/0xa0 [ 13.011913] ? __pfx_kthread+0x10/0x10 [ 13.011934] ret_from_fork+0x116/0x1d0 [ 13.011954] ? __pfx_kthread+0x10/0x10 [ 13.011974] ret_from_fork_asm+0x1a/0x30 [ 13.012005] </TASK> [ 13.012014] [ 13.024848] Allocated by task 209: [ 13.025034] kasan_save_stack+0x45/0x70 [ 13.025236] kasan_save_track+0x18/0x40 [ 13.025430] kasan_save_alloc_info+0x3b/0x50 [ 13.025740] __kasan_kmalloc+0xb7/0xc0 [ 13.025881] __kmalloc_cache_noprof+0x189/0x420 [ 13.026102] kmalloc_double_kzfree+0xa9/0x350 [ 13.026317] kunit_try_run_case+0x1a5/0x480 [ 13.026717] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.026956] kthread+0x337/0x6f0 [ 13.027082] ret_from_fork+0x116/0x1d0 [ 13.027214] ret_from_fork_asm+0x1a/0x30 [ 13.027367] [ 13.027470] Freed by task 209: [ 13.027622] kasan_save_stack+0x45/0x70 [ 13.027813] kasan_save_track+0x18/0x40 [ 13.028068] kasan_save_free_info+0x3f/0x60 [ 13.028324] __kasan_slab_free+0x56/0x70 [ 13.028635] kfree+0x222/0x3f0 [ 13.028787] kfree_sensitive+0x67/0x90 [ 13.028956] kmalloc_double_kzfree+0x12b/0x350 [ 13.029111] kunit_try_run_case+0x1a5/0x480 [ 13.029314] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.029665] kthread+0x337/0x6f0 [ 13.029825] ret_from_fork+0x116/0x1d0 [ 13.029985] ret_from_fork_asm+0x1a/0x30 [ 13.030142] [ 13.030214] The buggy address belongs to the object at ffff888101aa5dc0 [ 13.030214] which belongs to the cache kmalloc-16 of size 16 [ 13.030940] The buggy address is located 0 bytes inside of [ 13.030940] 16-byte region [ffff888101aa5dc0, ffff888101aa5dd0) [ 13.031363] [ 13.031442] The buggy address belongs to the physical page: [ 13.031699] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101aa5 [ 13.031987] flags: 0x200000000000000(node=0|zone=2) [ 13.032147] page_type: f5(slab) [ 13.032321] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 13.032648] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 13.032943] page dumped because: kasan: bad access detected [ 13.033113] [ 13.033181] Memory state around the buggy address: [ 13.033333] ffff888101aa5c80: 00 02 fc fc 00 05 fc fc 00 02 fc fc 00 02 fc fc [ 13.034046] ffff888101aa5d00: 00 02 fc fc 00 02 fc fc fa fb fc fc fa fb fc fc [ 13.034372] >ffff888101aa5d80: fa fb fc fc fa fb fc fc fa fb fc fc fc fc fc fc [ 13.034884] ^ [ 13.035085] ffff888101aa5e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.035298] ffff888101aa5e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.035608] ==================================================================
[ 13.217453] ================================================================== [ 13.218239] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90 [ 13.218560] Free of addr ffff888102b01280 by task kunit_try_catch/210 [ 13.219531] [ 13.219736] CPU: 1 UID: 0 PID: 210 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.219780] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.219792] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.219813] Call Trace: [ 13.219824] <TASK> [ 13.219838] dump_stack_lvl+0x73/0xb0 [ 13.219869] print_report+0xd1/0x610 [ 13.219892] ? __virt_addr_valid+0x1db/0x2d0 [ 13.219935] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.219966] ? kfree_sensitive+0x2e/0x90 [ 13.219988] kasan_report_invalid_free+0x10a/0x130 [ 13.220013] ? kfree_sensitive+0x2e/0x90 [ 13.220035] ? kfree_sensitive+0x2e/0x90 [ 13.220066] check_slab_allocation+0x101/0x130 [ 13.220089] __kasan_slab_pre_free+0x28/0x40 [ 13.220110] kfree+0xf0/0x3f0 [ 13.220132] ? kfree_sensitive+0x2e/0x90 [ 13.220154] kfree_sensitive+0x2e/0x90 [ 13.220174] kmalloc_double_kzfree+0x19c/0x350 [ 13.220197] ? __pfx_kmalloc_double_kzfree+0x10/0x10 [ 13.220221] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 13.220246] ? trace_hardirqs_on+0x37/0xe0 [ 13.220268] ? __pfx_read_tsc+0x10/0x10 [ 13.220289] ? ktime_get_ts64+0x86/0x230 [ 13.220313] kunit_try_run_case+0x1a5/0x480 [ 13.220337] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.220362] ? queued_spin_lock_slowpath+0x116/0xb40 [ 13.220386] ? __kthread_parkme+0x82/0x180 [ 13.220406] ? preempt_count_sub+0x50/0x80 [ 13.220430] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.220454] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.220479] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.220504] kthread+0x337/0x6f0 [ 13.220523] ? trace_preempt_on+0x20/0xc0 [ 13.220544] ? __pfx_kthread+0x10/0x10 [ 13.220565] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.220587] ? calculate_sigpending+0x7b/0xa0 [ 13.220613] ? __pfx_kthread+0x10/0x10 [ 13.220634] ret_from_fork+0x116/0x1d0 [ 13.220653] ? __pfx_kthread+0x10/0x10 [ 13.220673] ret_from_fork_asm+0x1a/0x30 [ 13.220703] </TASK> [ 13.220712] [ 13.233826] Allocated by task 210: [ 13.233960] kasan_save_stack+0x45/0x70 [ 13.234116] kasan_save_track+0x18/0x40 [ 13.234253] kasan_save_alloc_info+0x3b/0x50 [ 13.234402] __kasan_kmalloc+0xb7/0xc0 [ 13.234535] __kmalloc_cache_noprof+0x189/0x420 [ 13.234692] kmalloc_double_kzfree+0xa9/0x350 [ 13.234848] kunit_try_run_case+0x1a5/0x480 [ 13.235001] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.235660] kthread+0x337/0x6f0 [ 13.235954] ret_from_fork+0x116/0x1d0 [ 13.236318] ret_from_fork_asm+0x1a/0x30 [ 13.236852] [ 13.237075] Freed by task 210: [ 13.237381] kasan_save_stack+0x45/0x70 [ 13.237822] kasan_save_track+0x18/0x40 [ 13.238341] kasan_save_free_info+0x3f/0x60 [ 13.238814] __kasan_slab_free+0x56/0x70 [ 13.239216] kfree+0x222/0x3f0 [ 13.239516] kfree_sensitive+0x67/0x90 [ 13.239918] kmalloc_double_kzfree+0x12b/0x350 [ 13.240433] kunit_try_run_case+0x1a5/0x480 [ 13.240889] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.241460] kthread+0x337/0x6f0 [ 13.241834] ret_from_fork+0x116/0x1d0 [ 13.242228] ret_from_fork_asm+0x1a/0x30 [ 13.242597] [ 13.242802] The buggy address belongs to the object at ffff888102b01280 [ 13.242802] which belongs to the cache kmalloc-16 of size 16 [ 13.244108] The buggy address is located 0 bytes inside of [ 13.244108] 16-byte region [ffff888102b01280, ffff888102b01290) [ 13.245320] [ 13.245535] The buggy address belongs to the physical page: [ 13.246116] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b01 [ 13.246676] flags: 0x200000000000000(node=0|zone=2) [ 13.247263] page_type: f5(slab) [ 13.247469] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 13.247783] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 13.248483] page dumped because: kasan: bad access detected [ 13.249063] [ 13.249298] Memory state around the buggy address: [ 13.249640] ffff888102b01180: fa fb fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 13.250089] ffff888102b01200: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 13.250305] >ffff888102b01280: fa fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.250514] ^ [ 13.250628] ffff888102b01300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.250844] ffff888102b01380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.251062] ==================================================================