Date
July 20, 2025, 11:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.920594] ================================================================== [ 17.920678] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x174/0x300 [ 17.920749] Read of size 1 at addr fff00000c19b7dc0 by task kunit_try_catch/215 [ 17.920804] [ 17.920845] CPU: 0 UID: 0 PID: 215 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 17.920952] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.920981] Hardware name: linux,dummy-virt (DT) [ 17.921016] Call trace: [ 17.921044] show_stack+0x20/0x38 (C) [ 17.921098] dump_stack_lvl+0x8c/0xd0 [ 17.921149] print_report+0x118/0x5d0 [ 17.921197] kasan_report+0xdc/0x128 [ 17.921242] __kasan_check_byte+0x54/0x70 [ 17.921291] kmem_cache_destroy+0x34/0x218 [ 17.921339] kmem_cache_double_destroy+0x174/0x300 [ 17.921389] kunit_try_run_case+0x170/0x3f0 [ 17.921440] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.921494] kthread+0x328/0x630 [ 17.921538] ret_from_fork+0x10/0x20 [ 17.921589] [ 17.921608] Allocated by task 215: [ 17.921637] kasan_save_stack+0x3c/0x68 [ 17.921681] kasan_save_track+0x20/0x40 [ 17.921719] kasan_save_alloc_info+0x40/0x58 [ 17.921762] __kasan_slab_alloc+0xa8/0xb0 [ 17.921804] kmem_cache_alloc_noprof+0x10c/0x398 [ 17.921847] __kmem_cache_create_args+0x178/0x280 [ 17.921888] kmem_cache_double_destroy+0xc0/0x300 [ 17.921941] kunit_try_run_case+0x170/0x3f0 [ 17.921979] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.922025] kthread+0x328/0x630 [ 17.922059] ret_from_fork+0x10/0x20 [ 17.922097] [ 17.922116] Freed by task 215: [ 17.922143] kasan_save_stack+0x3c/0x68 [ 17.922184] kasan_save_track+0x20/0x40 [ 17.922221] kasan_save_free_info+0x4c/0x78 [ 17.922262] __kasan_slab_free+0x6c/0x98 [ 17.922300] kmem_cache_free+0x260/0x468 [ 17.922339] slab_kmem_cache_release+0x38/0x50 [ 17.922380] kmem_cache_release+0x1c/0x30 [ 17.922417] kobject_put+0x17c/0x420 [ 17.922455] sysfs_slab_release+0x1c/0x30 [ 17.922493] kmem_cache_destroy+0x118/0x218 [ 17.922533] kmem_cache_double_destroy+0x128/0x300 [ 17.922572] kunit_try_run_case+0x170/0x3f0 [ 17.922611] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.922661] kthread+0x328/0x630 [ 17.922694] ret_from_fork+0x10/0x20 [ 17.922732] [ 17.922751] The buggy address belongs to the object at fff00000c19b7dc0 [ 17.922751] which belongs to the cache kmem_cache of size 208 [ 17.922809] The buggy address is located 0 bytes inside of [ 17.922809] freed 208-byte region [fff00000c19b7dc0, fff00000c19b7e90) [ 17.922871] [ 17.922893] The buggy address belongs to the physical page: [ 17.922935] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1019b7 [ 17.922992] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.923045] page_type: f5(slab) [ 17.923089] raw: 0bfffe0000000000 fff00000c0001000 dead000000000122 0000000000000000 [ 17.923142] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 17.923186] page dumped because: kasan: bad access detected [ 17.923220] [ 17.923237] Memory state around the buggy address: [ 17.923272] fff00000c19b7c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.923317] fff00000c19b7d00: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc [ 17.923363] >fff00000c19b7d80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 17.923402] ^ [ 17.923438] fff00000c19b7e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.923482] fff00000c19b7e80: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.923523] ==================================================================
[ 18.011046] ================================================================== [ 18.011918] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x174/0x300 [ 18.012799] Read of size 1 at addr fff00000c6670280 by task kunit_try_catch/215 [ 18.013192] [ 18.013277] CPU: 1 UID: 0 PID: 215 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 18.013566] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.013762] Hardware name: linux,dummy-virt (DT) [ 18.014053] Call trace: [ 18.014209] show_stack+0x20/0x38 (C) [ 18.014468] dump_stack_lvl+0x8c/0xd0 [ 18.014795] print_report+0x118/0x5d0 [ 18.015242] kasan_report+0xdc/0x128 [ 18.015519] __kasan_check_byte+0x54/0x70 [ 18.015692] kmem_cache_destroy+0x34/0x218 [ 18.015903] kmem_cache_double_destroy+0x174/0x300 [ 18.016078] kunit_try_run_case+0x170/0x3f0 [ 18.016527] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.016719] kthread+0x328/0x630 [ 18.016772] ret_from_fork+0x10/0x20 [ 18.016829] [ 18.016847] Allocated by task 215: [ 18.017240] kasan_save_stack+0x3c/0x68 [ 18.017410] kasan_save_track+0x20/0x40 [ 18.017697] kasan_save_alloc_info+0x40/0x58 [ 18.017749] __kasan_slab_alloc+0xa8/0xb0 [ 18.017816] kmem_cache_alloc_noprof+0x10c/0x398 [ 18.017878] __kmem_cache_create_args+0x178/0x280 [ 18.018047] kmem_cache_double_destroy+0xc0/0x300 [ 18.018199] kunit_try_run_case+0x170/0x3f0 [ 18.018245] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.018291] kthread+0x328/0x630 [ 18.018590] ret_from_fork+0x10/0x20 [ 18.019054] [ 18.019078] Freed by task 215: [ 18.019107] kasan_save_stack+0x3c/0x68 [ 18.019154] kasan_save_track+0x20/0x40 [ 18.019689] kasan_save_free_info+0x4c/0x78 [ 18.019743] __kasan_slab_free+0x6c/0x98 [ 18.019780] kmem_cache_free+0x260/0x468 [ 18.020180] slab_kmem_cache_release+0x38/0x50 [ 18.020428] kmem_cache_release+0x1c/0x30 [ 18.020530] kobject_put+0x17c/0x420 [ 18.020717] sysfs_slab_release+0x1c/0x30 [ 18.020762] kmem_cache_destroy+0x118/0x218 [ 18.021193] kmem_cache_double_destroy+0x128/0x300 [ 18.021261] kunit_try_run_case+0x170/0x3f0 [ 18.021440] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.021756] kthread+0x328/0x630 [ 18.021821] ret_from_fork+0x10/0x20 [ 18.021875] [ 18.021951] The buggy address belongs to the object at fff00000c6670280 [ 18.021951] which belongs to the cache kmem_cache of size 208 [ 18.022120] The buggy address is located 0 bytes inside of [ 18.022120] freed 208-byte region [fff00000c6670280, fff00000c6670350) [ 18.022503] [ 18.022587] The buggy address belongs to the physical page: [ 18.023116] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106670 [ 18.023294] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.023768] page_type: f5(slab) [ 18.023822] raw: 0bfffe0000000000 fff00000c0001000 dead000000000122 0000000000000000 [ 18.024155] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 18.024201] page dumped because: kasan: bad access detected [ 18.024234] [ 18.024253] Memory state around the buggy address: [ 18.024913] fff00000c6670180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.025121] fff00000c6670200: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.025173] >fff00000c6670280: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.025225] ^ [ 18.025283] fff00000c6670300: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 18.025505] fff00000c6670380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.025566] ==================================================================
[ 13.519995] ================================================================== [ 13.520584] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bf/0x380 [ 13.521420] Read of size 1 at addr ffff888101a54dc0 by task kunit_try_catch/233 [ 13.521821] [ 13.522083] CPU: 1 UID: 0 PID: 233 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 13.522137] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.522149] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.522172] Call Trace: [ 13.522187] <TASK> [ 13.522207] dump_stack_lvl+0x73/0xb0 [ 13.522304] print_report+0xd1/0x610 [ 13.522330] ? __virt_addr_valid+0x1db/0x2d0 [ 13.522355] ? kmem_cache_double_destroy+0x1bf/0x380 [ 13.522380] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.522415] ? kmem_cache_double_destroy+0x1bf/0x380 [ 13.522440] kasan_report+0x141/0x180 [ 13.522463] ? kmem_cache_double_destroy+0x1bf/0x380 [ 13.522491] ? kmem_cache_double_destroy+0x1bf/0x380 [ 13.522516] __kasan_check_byte+0x3d/0x50 [ 13.522538] kmem_cache_destroy+0x25/0x1d0 [ 13.522563] kmem_cache_double_destroy+0x1bf/0x380 [ 13.522587] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 13.522611] ? finish_task_switch.isra.0+0x153/0x700 [ 13.522634] ? __switch_to+0x47/0xf50 [ 13.522667] ? __pfx_read_tsc+0x10/0x10 [ 13.522689] ? ktime_get_ts64+0x86/0x230 [ 13.522715] kunit_try_run_case+0x1a5/0x480 [ 13.522740] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.522763] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.522789] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.522813] ? __kthread_parkme+0x82/0x180 [ 13.522836] ? preempt_count_sub+0x50/0x80 [ 13.522860] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.522884] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.522909] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.522933] kthread+0x337/0x6f0 [ 13.522952] ? trace_preempt_on+0x20/0xc0 [ 13.522977] ? __pfx_kthread+0x10/0x10 [ 13.522997] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.523018] ? calculate_sigpending+0x7b/0xa0 [ 13.523042] ? __pfx_kthread+0x10/0x10 [ 13.523065] ret_from_fork+0x116/0x1d0 [ 13.523085] ? __pfx_kthread+0x10/0x10 [ 13.523106] ret_from_fork_asm+0x1a/0x30 [ 13.523139] </TASK> [ 13.523150] [ 13.534247] Allocated by task 233: [ 13.534393] kasan_save_stack+0x45/0x70 [ 13.534789] kasan_save_track+0x18/0x40 [ 13.535309] kasan_save_alloc_info+0x3b/0x50 [ 13.535532] __kasan_slab_alloc+0x91/0xa0 [ 13.535745] kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.535937] __kmem_cache_create_args+0x169/0x240 [ 13.536152] kmem_cache_double_destroy+0xd5/0x380 [ 13.536540] kunit_try_run_case+0x1a5/0x480 [ 13.536735] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.536978] kthread+0x337/0x6f0 [ 13.537144] ret_from_fork+0x116/0x1d0 [ 13.537350] ret_from_fork_asm+0x1a/0x30 [ 13.537518] [ 13.537611] Freed by task 233: [ 13.537783] kasan_save_stack+0x45/0x70 [ 13.537948] kasan_save_track+0x18/0x40 [ 13.538143] kasan_save_free_info+0x3f/0x60 [ 13.538430] __kasan_slab_free+0x56/0x70 [ 13.538728] kmem_cache_free+0x249/0x420 [ 13.538898] slab_kmem_cache_release+0x2e/0x40 [ 13.539158] kmem_cache_release+0x16/0x20 [ 13.539361] kobject_put+0x181/0x450 [ 13.539536] sysfs_slab_release+0x16/0x20 [ 13.539749] kmem_cache_destroy+0xf0/0x1d0 [ 13.539965] kmem_cache_double_destroy+0x14e/0x380 [ 13.540150] kunit_try_run_case+0x1a5/0x480 [ 13.540546] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.540811] kthread+0x337/0x6f0 [ 13.540970] ret_from_fork+0x116/0x1d0 [ 13.541106] ret_from_fork_asm+0x1a/0x30 [ 13.541247] [ 13.541320] The buggy address belongs to the object at ffff888101a54dc0 [ 13.541320] which belongs to the cache kmem_cache of size 208 [ 13.541812] The buggy address is located 0 bytes inside of [ 13.541812] freed 208-byte region [ffff888101a54dc0, ffff888101a54e90) [ 13.542306] [ 13.542384] The buggy address belongs to the physical page: [ 13.542685] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101a54 [ 13.543064] flags: 0x200000000000000(node=0|zone=2) [ 13.543314] page_type: f5(slab) [ 13.543506] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000 [ 13.543902] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 13.544233] page dumped because: kasan: bad access detected [ 13.544487] [ 13.544582] Memory state around the buggy address: [ 13.544778] ffff888101a54c80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.545308] ffff888101a54d00: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 13.545663] >ffff888101a54d80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 13.545907] ^ [ 13.546194] ffff888101a54e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.546555] ffff888101a54e80: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.546888] ==================================================================
[ 13.611084] ================================================================== [ 13.611582] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bf/0x380 [ 13.612225] Read of size 1 at addr ffff8881027b6000 by task kunit_try_catch/232 [ 13.612477] [ 13.612600] CPU: 1 UID: 0 PID: 232 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 13.612649] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.612661] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.612685] Call Trace: [ 13.612699] <TASK> [ 13.612716] dump_stack_lvl+0x73/0xb0 [ 13.612748] print_report+0xd1/0x610 [ 13.612771] ? __virt_addr_valid+0x1db/0x2d0 [ 13.612796] ? kmem_cache_double_destroy+0x1bf/0x380 [ 13.612820] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.612842] ? kmem_cache_double_destroy+0x1bf/0x380 [ 13.612933] kasan_report+0x141/0x180 [ 13.612954] ? kmem_cache_double_destroy+0x1bf/0x380 [ 13.612982] ? kmem_cache_double_destroy+0x1bf/0x380 [ 13.613005] __kasan_check_byte+0x3d/0x50 [ 13.613027] kmem_cache_destroy+0x25/0x1d0 [ 13.613051] kmem_cache_double_destroy+0x1bf/0x380 [ 13.613075] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 13.613098] ? finish_task_switch.isra.0+0x153/0x700 [ 13.613122] ? __switch_to+0x47/0xf50 [ 13.613165] ? __pfx_read_tsc+0x10/0x10 [ 13.613187] ? ktime_get_ts64+0x86/0x230 [ 13.613212] kunit_try_run_case+0x1a5/0x480 [ 13.613238] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.613261] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.613286] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.613311] ? __kthread_parkme+0x82/0x180 [ 13.613335] ? preempt_count_sub+0x50/0x80 [ 13.613358] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.613383] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.613406] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.613431] kthread+0x337/0x6f0 [ 13.613450] ? trace_preempt_on+0x20/0xc0 [ 13.613474] ? __pfx_kthread+0x10/0x10 [ 13.613495] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.613516] ? calculate_sigpending+0x7b/0xa0 [ 13.613543] ? __pfx_kthread+0x10/0x10 [ 13.613567] ret_from_fork+0x116/0x1d0 [ 13.613588] ? __pfx_kthread+0x10/0x10 [ 13.613609] ret_from_fork_asm+0x1a/0x30 [ 13.613642] </TASK> [ 13.613652] [ 13.625806] Allocated by task 232: [ 13.626168] kasan_save_stack+0x45/0x70 [ 13.626328] kasan_save_track+0x18/0x40 [ 13.626719] kasan_save_alloc_info+0x3b/0x50 [ 13.627063] __kasan_slab_alloc+0x91/0xa0 [ 13.627265] kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.627665] __kmem_cache_create_args+0x169/0x240 [ 13.628123] kmem_cache_double_destroy+0xd5/0x380 [ 13.628591] kunit_try_run_case+0x1a5/0x480 [ 13.628787] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.629234] kthread+0x337/0x6f0 [ 13.629514] ret_from_fork+0x116/0x1d0 [ 13.629679] ret_from_fork_asm+0x1a/0x30 [ 13.630154] [ 13.630367] Freed by task 232: [ 13.630489] kasan_save_stack+0x45/0x70 [ 13.630852] kasan_save_track+0x18/0x40 [ 13.631292] kasan_save_free_info+0x3f/0x60 [ 13.631583] __kasan_slab_free+0x56/0x70 [ 13.631800] kmem_cache_free+0x249/0x420 [ 13.632306] slab_kmem_cache_release+0x2e/0x40 [ 13.632637] kmem_cache_release+0x16/0x20 [ 13.632824] kobject_put+0x181/0x450 [ 13.633084] sysfs_slab_release+0x16/0x20 [ 13.633275] kmem_cache_destroy+0xf0/0x1d0 [ 13.633532] kmem_cache_double_destroy+0x14e/0x380 [ 13.634166] kunit_try_run_case+0x1a5/0x480 [ 13.634511] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.634896] kthread+0x337/0x6f0 [ 13.635158] ret_from_fork+0x116/0x1d0 [ 13.635505] ret_from_fork_asm+0x1a/0x30 [ 13.635858] [ 13.636101] The buggy address belongs to the object at ffff8881027b6000 [ 13.636101] which belongs to the cache kmem_cache of size 208 [ 13.636802] The buggy address is located 0 bytes inside of [ 13.636802] freed 208-byte region [ffff8881027b6000, ffff8881027b60d0) [ 13.637717] [ 13.637820] The buggy address belongs to the physical page: [ 13.638281] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027b6 [ 13.638774] flags: 0x200000000000000(node=0|zone=2) [ 13.639297] page_type: f5(slab) [ 13.639568] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000 [ 13.640209] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 13.640613] page dumped because: kasan: bad access detected [ 13.641095] [ 13.641196] Memory state around the buggy address: [ 13.641592] ffff8881027b5f00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 13.641939] ffff8881027b5f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.642222] >ffff8881027b6000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.642748] ^ [ 13.642890] ffff8881027b6080: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 13.643459] ffff8881027b6100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.643783] ==================================================================