Date
July 2, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.410691] ================================================================== [ 31.411162] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 31.411955] Free of addr fff00000c406c000 by task kunit_try_catch/242 [ 31.412102] [ 31.412148] CPU: 0 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250702 #1 PREEMPT [ 31.412681] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.412715] Hardware name: linux,dummy-virt (DT) [ 31.412751] Call trace: [ 31.413035] show_stack+0x20/0x38 (C) [ 31.413119] dump_stack_lvl+0x8c/0xd0 [ 31.413295] print_report+0x118/0x608 [ 31.413672] kasan_report_invalid_free+0xc0/0xe8 [ 31.414146] check_slab_allocation+0xd4/0x108 [ 31.414215] __kasan_slab_pre_free+0x2c/0x48 [ 31.414267] kmem_cache_free+0xf0/0x468 [ 31.414318] kmem_cache_double_free+0x190/0x3c8 [ 31.414369] kunit_try_run_case+0x170/0x3f0 [ 31.414422] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.414475] kthread+0x328/0x630 [ 31.414521] ret_from_fork+0x10/0x20 [ 31.415204] [ 31.415230] Allocated by task 242: [ 31.415531] kasan_save_stack+0x3c/0x68 [ 31.415864] kasan_save_track+0x20/0x40 [ 31.415907] kasan_save_alloc_info+0x40/0x58 [ 31.415953] __kasan_slab_alloc+0xa8/0xb0 [ 31.416648] kmem_cache_alloc_noprof+0x10c/0x398 [ 31.416896] kmem_cache_double_free+0x12c/0x3c8 [ 31.416950] kunit_try_run_case+0x170/0x3f0 [ 31.417291] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.417377] kthread+0x328/0x630 [ 31.417412] ret_from_fork+0x10/0x20 [ 31.417761] [ 31.418119] Freed by task 242: [ 31.418325] kasan_save_stack+0x3c/0x68 [ 31.418403] kasan_save_track+0x20/0x40 [ 31.418440] kasan_save_free_info+0x4c/0x78 [ 31.418480] __kasan_slab_free+0x6c/0x98 [ 31.418517] kmem_cache_free+0x260/0x468 [ 31.418553] kmem_cache_double_free+0x140/0x3c8 [ 31.418696] kunit_try_run_case+0x170/0x3f0 [ 31.418875] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.419179] kthread+0x328/0x630 [ 31.419219] ret_from_fork+0x10/0x20 [ 31.419257] [ 31.419277] The buggy address belongs to the object at fff00000c406c000 [ 31.419277] which belongs to the cache test_cache of size 200 [ 31.419835] The buggy address is located 0 bytes inside of [ 31.419835] 200-byte region [fff00000c406c000, fff00000c406c0c8) [ 31.419978] [ 31.420158] The buggy address belongs to the physical page: [ 31.420221] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10406c [ 31.420285] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.420634] page_type: f5(slab) [ 31.420699] raw: 0bfffe0000000000 fff00000c3fa2500 dead000000000122 0000000000000000 [ 31.420974] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 31.421066] page dumped because: kasan: bad access detected [ 31.421099] [ 31.421118] Memory state around the buggy address: [ 31.421235] fff00000c406bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.421291] fff00000c406bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.421688] >fff00000c406c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.422070] ^ [ 31.422220] fff00000c406c080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 31.422267] fff00000c406c100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.422652] ==================================================================
[ 33.260832] ================================================================== [ 33.260900] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 33.260974] Free of addr fff00000c9a1c000 by task kunit_try_catch/240 [ 33.261019] [ 33.261061] CPU: 1 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250702 #1 PREEMPT [ 33.261153] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.261194] Hardware name: linux,dummy-virt (DT) [ 33.261230] Call trace: [ 33.261255] show_stack+0x20/0x38 (C) [ 33.261311] dump_stack_lvl+0x8c/0xd0 [ 33.261363] print_report+0x118/0x608 [ 33.261412] kasan_report_invalid_free+0xc0/0xe8 [ 33.261463] check_slab_allocation+0xd4/0x108 [ 33.261520] __kasan_slab_pre_free+0x2c/0x48 [ 33.261567] kmem_cache_free+0xf0/0x468 [ 33.261617] kmem_cache_double_free+0x190/0x3c8 [ 33.261665] kunit_try_run_case+0x170/0x3f0 [ 33.261718] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.261772] kthread+0x328/0x630 [ 33.261816] ret_from_fork+0x10/0x20 [ 33.261866] [ 33.261884] Allocated by task 240: [ 33.261913] kasan_save_stack+0x3c/0x68 [ 33.261955] kasan_save_track+0x20/0x40 [ 33.261992] kasan_save_alloc_info+0x40/0x58 [ 33.262053] __kasan_slab_alloc+0xa8/0xb0 [ 33.262236] kmem_cache_alloc_noprof+0x10c/0x398 [ 33.262301] kmem_cache_double_free+0x12c/0x3c8 [ 33.262403] kunit_try_run_case+0x170/0x3f0 [ 33.262451] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.262639] kthread+0x328/0x630 [ 33.262693] ret_from_fork+0x10/0x20 [ 33.262812] [ 33.262831] Freed by task 240: [ 33.262857] kasan_save_stack+0x3c/0x68 [ 33.262896] kasan_save_track+0x20/0x40 [ 33.262934] kasan_save_free_info+0x4c/0x78 [ 33.262975] __kasan_slab_free+0x6c/0x98 [ 33.263153] kmem_cache_free+0x260/0x468 [ 33.263202] kmem_cache_double_free+0x140/0x3c8 [ 33.263240] kunit_try_run_case+0x170/0x3f0 [ 33.263278] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.263322] kthread+0x328/0x630 [ 33.263353] ret_from_fork+0x10/0x20 [ 33.263390] [ 33.263409] The buggy address belongs to the object at fff00000c9a1c000 [ 33.263409] which belongs to the cache test_cache of size 200 [ 33.263493] The buggy address is located 0 bytes inside of [ 33.263493] 200-byte region [fff00000c9a1c000, fff00000c9a1c0c8) [ 33.263557] [ 33.263579] The buggy address belongs to the physical page: [ 33.263613] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109a1c [ 33.263671] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.263726] page_type: f5(slab) [ 33.263770] raw: 0bfffe0000000000 fff00000c5711b40 dead000000000122 0000000000000000 [ 33.263832] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 33.263964] page dumped because: kasan: bad access detected [ 33.264026] [ 33.264050] Memory state around the buggy address: [ 33.264140] fff00000c9a1bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.264195] fff00000c9a1bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.264239] >fff00000c9a1c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.264278] ^ [ 33.264332] fff00000c9a1c080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 33.264374] fff00000c9a1c100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.264414] ==================================================================
[ 23.998011] ================================================================== [ 23.998495] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480 [ 23.998991] Free of addr ffff888105a14000 by task kunit_try_catch/258 [ 23.999368] [ 23.999513] CPU: 0 UID: 0 PID: 258 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250702 #1 PREEMPT(voluntary) [ 23.999582] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.999595] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.999619] Call Trace: [ 23.999634] <TASK> [ 23.999656] dump_stack_lvl+0x73/0xb0 [ 23.999690] print_report+0xd1/0x650 [ 23.999714] ? __virt_addr_valid+0x1db/0x2d0 [ 23.999741] ? kasan_complete_mode_report_info+0x64/0x200 [ 23.999766] ? kmem_cache_double_free+0x1e5/0x480 [ 23.999791] kasan_report_invalid_free+0x10a/0x130 [ 23.999814] ? kmem_cache_double_free+0x1e5/0x480 [ 23.999839] ? kmem_cache_double_free+0x1e5/0x480 [ 24.000017] check_slab_allocation+0x101/0x130 [ 24.000056] __kasan_slab_pre_free+0x28/0x40 [ 24.000086] kmem_cache_free+0xed/0x420 [ 24.000112] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 24.000136] ? kmem_cache_double_free+0x1e5/0x480 [ 24.000162] kmem_cache_double_free+0x1e5/0x480 [ 24.000310] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 24.000341] ? finish_task_switch.isra.0+0x153/0x700 [ 24.000365] ? __switch_to+0x47/0xf50 [ 24.000504] ? __pfx_read_tsc+0x10/0x10 [ 24.000528] ? ktime_get_ts64+0x86/0x230 [ 24.000639] kunit_try_run_case+0x1a5/0x480 [ 24.000668] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.000691] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.000714] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.000735] ? __kthread_parkme+0x82/0x180 [ 24.000756] ? preempt_count_sub+0x50/0x80 [ 24.000779] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.000803] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.000827] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.000850] kthread+0x337/0x6f0 [ 24.000870] ? trace_preempt_on+0x20/0xc0 [ 24.000894] ? __pfx_kthread+0x10/0x10 [ 24.000914] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.000957] ? calculate_sigpending+0x7b/0xa0 [ 24.000983] ? __pfx_kthread+0x10/0x10 [ 24.001004] ret_from_fork+0x116/0x1d0 [ 24.001024] ? __pfx_kthread+0x10/0x10 [ 24.001044] ret_from_fork_asm+0x1a/0x30 [ 24.001086] </TASK> [ 24.001099] [ 24.011160] Allocated by task 258: [ 24.011391] kasan_save_stack+0x45/0x70 [ 24.011633] kasan_save_track+0x18/0x40 [ 24.011910] kasan_save_alloc_info+0x3b/0x50 [ 24.012085] __kasan_slab_alloc+0x91/0xa0 [ 24.012356] kmem_cache_alloc_noprof+0x123/0x3f0 [ 24.012675] kmem_cache_double_free+0x14f/0x480 [ 24.012922] kunit_try_run_case+0x1a5/0x480 [ 24.013151] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.013348] kthread+0x337/0x6f0 [ 24.013463] ret_from_fork+0x116/0x1d0 [ 24.013630] ret_from_fork_asm+0x1a/0x30 [ 24.013816] [ 24.013909] Freed by task 258: [ 24.014057] kasan_save_stack+0x45/0x70 [ 24.014367] kasan_save_track+0x18/0x40 [ 24.014496] kasan_save_free_info+0x3f/0x60 [ 24.014649] __kasan_slab_free+0x56/0x70 [ 24.014837] kmem_cache_free+0x249/0x420 [ 24.015463] kmem_cache_double_free+0x16a/0x480 [ 24.015682] kunit_try_run_case+0x1a5/0x480 [ 24.015900] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.016096] kthread+0x337/0x6f0 [ 24.016221] ret_from_fork+0x116/0x1d0 [ 24.016449] ret_from_fork_asm+0x1a/0x30 [ 24.016828] [ 24.017152] The buggy address belongs to the object at ffff888105a14000 [ 24.017152] which belongs to the cache test_cache of size 200 [ 24.018535] The buggy address is located 0 bytes inside of [ 24.018535] 200-byte region [ffff888105a14000, ffff888105a140c8) [ 24.019184] [ 24.019355] The buggy address belongs to the physical page: [ 24.019589] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a14 [ 24.019874] flags: 0x200000000000000(node=0|zone=2) [ 24.020118] page_type: f5(slab) [ 24.020367] raw: 0200000000000000 ffff888101095500 dead000000000122 0000000000000000 [ 24.020647] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 24.020963] page dumped because: kasan: bad access detected [ 24.021162] [ 24.021229] Memory state around the buggy address: [ 24.021465] ffff888105a13f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.021733] ffff888105a13f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.022180] >ffff888105a14000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.022639] ^ [ 24.022814] ffff888105a14080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 24.023119] ffff888105a14100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.023410] ==================================================================
[ 23.727212] ================================================================== [ 23.727687] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480 [ 23.728391] Free of addr ffff8881058a2000 by task kunit_try_catch/257 [ 23.728884] [ 23.729029] CPU: 0 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250702 #1 PREEMPT(voluntary) [ 23.729362] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.729376] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.729398] Call Trace: [ 23.729412] <TASK> [ 23.729433] dump_stack_lvl+0x73/0xb0 [ 23.729467] print_report+0xd1/0x650 [ 23.729499] ? __virt_addr_valid+0x1db/0x2d0 [ 23.729525] ? kasan_complete_mode_report_info+0x64/0x200 [ 23.729550] ? kmem_cache_double_free+0x1e5/0x480 [ 23.729574] kasan_report_invalid_free+0x10a/0x130 [ 23.729596] ? kmem_cache_double_free+0x1e5/0x480 [ 23.729621] ? kmem_cache_double_free+0x1e5/0x480 [ 23.729644] check_slab_allocation+0x101/0x130 [ 23.729664] __kasan_slab_pre_free+0x28/0x40 [ 23.729697] kmem_cache_free+0xed/0x420 [ 23.729721] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 23.729751] ? kmem_cache_double_free+0x1e5/0x480 [ 23.729777] kmem_cache_double_free+0x1e5/0x480 [ 23.729800] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 23.729822] ? finish_task_switch.isra.0+0x153/0x700 [ 23.729844] ? __switch_to+0x47/0xf50 [ 23.729874] ? __pfx_read_tsc+0x10/0x10 [ 23.729896] ? ktime_get_ts64+0x86/0x230 [ 23.729922] kunit_try_run_case+0x1a5/0x480 [ 23.729949] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.729971] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 23.729993] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.730014] ? __kthread_parkme+0x82/0x180 [ 23.730034] ? preempt_count_sub+0x50/0x80 [ 23.730056] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.730079] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.730102] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.730125] kthread+0x337/0x6f0 [ 23.730144] ? trace_preempt_on+0x20/0xc0 [ 23.730168] ? __pfx_kthread+0x10/0x10 [ 23.730188] ? _raw_spin_unlock_irq+0x47/0x80 [ 23.730211] ? calculate_sigpending+0x7b/0xa0 [ 23.730235] ? __pfx_kthread+0x10/0x10 [ 23.730256] ret_from_fork+0x116/0x1d0 [ 23.730274] ? __pfx_kthread+0x10/0x10 [ 23.730294] ret_from_fork_asm+0x1a/0x30 [ 23.730335] </TASK> [ 23.730348] [ 23.742633] Allocated by task 257: [ 23.743133] kasan_save_stack+0x45/0x70 [ 23.743383] kasan_save_track+0x18/0x40 [ 23.743811] kasan_save_alloc_info+0x3b/0x50 [ 23.744015] __kasan_slab_alloc+0x91/0xa0 [ 23.744196] kmem_cache_alloc_noprof+0x123/0x3f0 [ 23.744555] kmem_cache_double_free+0x14f/0x480 [ 23.745075] kunit_try_run_case+0x1a5/0x480 [ 23.745279] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.745613] kthread+0x337/0x6f0 [ 23.745957] ret_from_fork+0x116/0x1d0 [ 23.746459] ret_from_fork_asm+0x1a/0x30 [ 23.746961] [ 23.747049] Freed by task 257: [ 23.747395] kasan_save_stack+0x45/0x70 [ 23.747690] kasan_save_track+0x18/0x40 [ 23.747855] kasan_save_free_info+0x3f/0x60 [ 23.748063] __kasan_slab_free+0x56/0x70 [ 23.748242] kmem_cache_free+0x249/0x420 [ 23.748435] kmem_cache_double_free+0x16a/0x480 [ 23.749276] kunit_try_run_case+0x1a5/0x480 [ 23.749633] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.750379] kthread+0x337/0x6f0 [ 23.750985] ret_from_fork+0x116/0x1d0 [ 23.751169] ret_from_fork_asm+0x1a/0x30 [ 23.751329] [ 23.751643] The buggy address belongs to the object at ffff8881058a2000 [ 23.751643] which belongs to the cache test_cache of size 200 [ 23.752492] The buggy address is located 0 bytes inside of [ 23.752492] 200-byte region [ffff8881058a2000, ffff8881058a20c8) [ 23.753343] [ 23.753447] The buggy address belongs to the physical page: [ 23.753959] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1058a2 [ 23.754421] flags: 0x200000000000000(node=0|zone=2) [ 23.754986] page_type: f5(slab) [ 23.755284] raw: 0200000000000000 ffff8881012dcdc0 dead000000000122 0000000000000000 [ 23.755877] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 23.756239] page dumped because: kasan: bad access detected [ 23.756628] [ 23.756779] Memory state around the buggy address: [ 23.757165] ffff8881058a1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.757565] ffff8881058a1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.758054] >ffff8881058a2000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.758473] ^ [ 23.758678] ffff8881058a2080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 23.759319] ffff8881058a2100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.759906] ==================================================================