Date
June 26, 2025, 11:12 a.m.
| Environment | |
|---|---|
| e850-96 | |
| qemu-arm64 | |
| qemu-x86_64 |
[ 34.792035] ================================================================== [ 34.792222] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x174/0x300 [ 34.792363] Read of size 1 at addr ffff000800dbe140 by task kunit_try_catch/264 [ 34.795916] [ 34.797405] CPU: 1 UID: 0 PID: 264 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc3 #1 PREEMPT [ 34.797463] Tainted: [B]=BAD_PAGE, [N]=TEST [ 34.797480] Hardware name: WinLink E850-96 board (DT) [ 34.797502] Call trace: [ 34.797518] show_stack+0x20/0x38 (C) [ 34.797557] dump_stack_lvl+0x8c/0xd0 [ 34.797595] print_report+0x118/0x608 [ 34.797627] kasan_report+0xdc/0x128 [ 34.797658] __kasan_check_byte+0x54/0x70 [ 34.797689] kmem_cache_destroy+0x34/0x218 [ 34.797722] kmem_cache_double_destroy+0x174/0x300 [ 34.797757] kunit_try_run_case+0x170/0x3f0 [ 34.797794] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.797834] kthread+0x328/0x630 [ 34.797871] ret_from_fork+0x10/0x20 [ 34.797908] [ 34.864144] Allocated by task 264: [ 34.867533] kasan_save_stack+0x3c/0x68 [ 34.871349] kasan_save_track+0x20/0x40 [ 34.875168] kasan_save_alloc_info+0x40/0x58 [ 34.879421] __kasan_slab_alloc+0xa8/0xb0 [ 34.883415] kmem_cache_alloc_noprof+0x10c/0x398 [ 34.888015] __kmem_cache_create_args+0x178/0x280 [ 34.892702] kmem_cache_double_destroy+0xc0/0x300 [ 34.897390] kunit_try_run_case+0x170/0x3f0 [ 34.901558] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.907025] kthread+0x328/0x630 [ 34.910237] ret_from_fork+0x10/0x20 [ 34.913796] [ 34.915273] Freed by task 264: [ 34.918311] kasan_save_stack+0x3c/0x68 [ 34.922129] kasan_save_track+0x20/0x40 [ 34.925948] kasan_save_free_info+0x4c/0x78 [ 34.930115] __kasan_slab_free+0x6c/0x98 [ 34.934023] kmem_cache_free+0x260/0x468 [ 34.937927] slab_kmem_cache_release+0x38/0x50 [ 34.942354] kmem_cache_release+0x1c/0x30 [ 34.946348] kobject_put+0x17c/0x420 [ 34.949906] sysfs_slab_release+0x1c/0x30 [ 34.953900] kmem_cache_destroy+0x118/0x218 [ 34.958066] kmem_cache_double_destroy+0x128/0x300 [ 34.962840] kunit_try_run_case+0x170/0x3f0 [ 34.967009] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.972476] kthread+0x328/0x630 [ 34.975688] ret_from_fork+0x10/0x20 [ 34.979246] [ 34.980723] The buggy address belongs to the object at ffff000800dbe140 [ 34.980723] which belongs to the cache kmem_cache of size 208 [ 34.993137] The buggy address is located 0 bytes inside of [ 34.993137] freed 208-byte region [ffff000800dbe140, ffff000800dbe210) [ 35.005200] [ 35.006681] The buggy address belongs to the physical page: [ 35.012237] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x880dbe [ 35.020220] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 35.027859] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 35.034802] page_type: f5(slab) [ 35.037941] raw: 0bfffe0000000040 ffff000800002000 dead000000000122 0000000000000000 [ 35.045658] raw: 0000000000000000 0000000080190019 00000000f5000000 0000000000000000 [ 35.053385] head: 0bfffe0000000040 ffff000800002000 dead000000000122 0000000000000000 [ 35.061196] head: 0000000000000000 0000000080190019 00000000f5000000 0000000000000000 [ 35.069009] head: 0bfffe0000000001 fffffdffe0036f81 00000000ffffffff 00000000ffffffff [ 35.076822] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 35.084627] page dumped because: kasan: bad access detected [ 35.090183] [ 35.091658] Memory state around the buggy address: [ 35.096438] ffff000800dbe000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.103641] ffff000800dbe080: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 35.110847] >ffff000800dbe100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 35.118046] ^ [ 35.123345] ffff000800dbe180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.130551] ffff000800dbe200: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.137751] ==================================================================
[ 19.350981] ================================================================== [ 19.351069] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x174/0x300 [ 19.351156] Read of size 1 at addr fff00000c5a3b3c0 by task kunit_try_catch/217 [ 19.351210] [ 19.351254] CPU: 1 UID: 0 PID: 217 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc3 #1 PREEMPT [ 19.351345] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.351374] Hardware name: linux,dummy-virt (DT) [ 19.351410] Call trace: [ 19.351436] show_stack+0x20/0x38 (C) [ 19.351487] dump_stack_lvl+0x8c/0xd0 [ 19.351540] print_report+0x118/0x608 [ 19.351585] kasan_report+0xdc/0x128 [ 19.351631] __kasan_check_byte+0x54/0x70 [ 19.351678] kmem_cache_destroy+0x34/0x218 [ 19.351723] kmem_cache_double_destroy+0x174/0x300 [ 19.351775] kunit_try_run_case+0x170/0x3f0 [ 19.351825] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.351896] kthread+0x328/0x630 [ 19.351942] ret_from_fork+0x10/0x20 [ 19.351993] [ 19.352011] Allocated by task 217: [ 19.352040] kasan_save_stack+0x3c/0x68 [ 19.352081] kasan_save_track+0x20/0x40 [ 19.352117] kasan_save_alloc_info+0x40/0x58 [ 19.352157] __kasan_slab_alloc+0xa8/0xb0 [ 19.352194] kmem_cache_alloc_noprof+0x10c/0x398 [ 19.352233] __kmem_cache_create_args+0x178/0x280 [ 19.352274] kmem_cache_double_destroy+0xc0/0x300 [ 19.352314] kunit_try_run_case+0x170/0x3f0 [ 19.352354] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.352399] kthread+0x328/0x630 [ 19.352438] ret_from_fork+0x10/0x20 [ 19.352474] [ 19.352493] Freed by task 217: [ 19.352519] kasan_save_stack+0x3c/0x68 [ 19.352554] kasan_save_track+0x20/0x40 [ 19.352590] kasan_save_free_info+0x4c/0x78 [ 19.352628] __kasan_slab_free+0x6c/0x98 [ 19.352665] kmem_cache_free+0x260/0x468 [ 19.352701] slab_kmem_cache_release+0x38/0x50 [ 19.352739] kmem_cache_release+0x1c/0x30 [ 19.352777] kobject_put+0x17c/0x420 [ 19.352813] sysfs_slab_release+0x1c/0x30 [ 19.352850] kmem_cache_destroy+0x118/0x218 [ 19.352898] kmem_cache_double_destroy+0x128/0x300 [ 19.352940] kunit_try_run_case+0x170/0x3f0 [ 19.352978] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.353022] kthread+0x328/0x630 [ 19.353058] ret_from_fork+0x10/0x20 [ 19.353095] [ 19.353114] The buggy address belongs to the object at fff00000c5a3b3c0 [ 19.353114] which belongs to the cache kmem_cache of size 208 [ 19.353175] The buggy address is located 0 bytes inside of [ 19.353175] freed 208-byte region [fff00000c5a3b3c0, fff00000c5a3b490) [ 19.353237] [ 19.353258] The buggy address belongs to the physical page: [ 19.353292] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a3b [ 19.353346] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.353402] page_type: f5(slab) [ 19.353447] raw: 0bfffe0000000000 fff00000c0001000 dead000000000122 0000000000000000 [ 19.353500] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 19.353545] page dumped because: kasan: bad access detected [ 19.353579] [ 19.353597] Memory state around the buggy address: [ 19.353632] fff00000c5a3b280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.353678] fff00000c5a3b300: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc [ 19.353725] >fff00000c5a3b380: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 19.353767] ^ [ 19.353800] fff00000c5a3b400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.353846] fff00000c5a3b480: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.353896] ==================================================================
[ 11.797434] ================================================================== [ 11.798252] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bf/0x380 [ 11.798535] Read of size 1 at addr ffff8881021093c0 by task kunit_try_catch/234 [ 11.798843] [ 11.798950] CPU: 0 UID: 0 PID: 234 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc3 #1 PREEMPT(voluntary) [ 11.799002] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.799015] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.799040] Call Trace: [ 11.799054] <TASK> [ 11.799075] dump_stack_lvl+0x73/0xb0 [ 11.799105] print_report+0xd1/0x650 [ 11.799129] ? __virt_addr_valid+0x1db/0x2d0 [ 11.799154] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.799174] ? kasan_complete_mode_report_info+0x64/0x200 [ 11.799198] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.799219] kasan_report+0x141/0x180 [ 11.799241] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.799265] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.799288] __kasan_check_byte+0x3d/0x50 [ 11.799310] kmem_cache_destroy+0x25/0x1d0 [ 11.799334] kmem_cache_double_destroy+0x1bf/0x380 [ 11.799355] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 11.799376] ? finish_task_switch.isra.0+0x153/0x700 [ 11.799401] ? __switch_to+0x5d9/0xf60 [ 11.799423] ? dequeue_task_fair+0x166/0x4e0 [ 11.799450] ? __pfx_read_tsc+0x10/0x10 [ 11.799471] ? ktime_get_ts64+0x86/0x230 [ 11.799497] kunit_try_run_case+0x1a5/0x480 [ 11.799524] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.799546] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.799571] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.799594] ? __kthread_parkme+0x82/0x180 [ 11.799618] ? preempt_count_sub+0x50/0x80 [ 11.799643] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.799688] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.799712] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.799735] kthread+0x337/0x6f0 [ 11.799765] ? trace_preempt_on+0x20/0xc0 [ 11.799790] ? __pfx_kthread+0x10/0x10 [ 11.799809] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.799831] ? calculate_sigpending+0x7b/0xa0 [ 11.799854] ? __pfx_kthread+0x10/0x10 [ 11.799873] ret_from_fork+0x41/0x80 [ 11.799894] ? __pfx_kthread+0x10/0x10 [ 11.799912] ret_from_fork_asm+0x1a/0x30 [ 11.799991] </TASK> [ 11.800003] [ 11.814965] Allocated by task 234: [ 11.815303] kasan_save_stack+0x45/0x70 [ 11.815470] kasan_save_track+0x18/0x40 [ 11.815687] kasan_save_alloc_info+0x3b/0x50 [ 11.816125] __kasan_slab_alloc+0x91/0xa0 [ 11.816762] kmem_cache_alloc_noprof+0x123/0x3f0 [ 11.817280] __kmem_cache_create_args+0x169/0x240 [ 11.817479] kmem_cache_double_destroy+0xd5/0x380 [ 11.817967] kunit_try_run_case+0x1a5/0x480 [ 11.818391] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.818571] kthread+0x337/0x6f0 [ 11.818692] ret_from_fork+0x41/0x80 [ 11.819080] ret_from_fork_asm+0x1a/0x30 [ 11.819473] [ 11.819641] Freed by task 234: [ 11.819995] kasan_save_stack+0x45/0x70 [ 11.820577] kasan_save_track+0x18/0x40 [ 11.821020] kasan_save_free_info+0x3f/0x60 [ 11.821222] __kasan_slab_free+0x56/0x70 [ 11.821359] kmem_cache_free+0x249/0x420 [ 11.821496] slab_kmem_cache_release+0x2e/0x40 [ 11.821659] kmem_cache_release+0x16/0x20 [ 11.822024] kobject_put+0x181/0x450 [ 11.822440] sysfs_slab_release+0x16/0x20 [ 11.822903] kmem_cache_destroy+0xf0/0x1d0 [ 11.823287] kmem_cache_double_destroy+0x14e/0x380 [ 11.823934] kunit_try_run_case+0x1a5/0x480 [ 11.824325] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.824613] kthread+0x337/0x6f0 [ 11.825033] ret_from_fork+0x41/0x80 [ 11.825263] ret_from_fork_asm+0x1a/0x30 [ 11.825402] [ 11.825474] The buggy address belongs to the object at ffff8881021093c0 [ 11.825474] which belongs to the cache kmem_cache of size 208 [ 11.826471] The buggy address is located 0 bytes inside of [ 11.826471] freed 208-byte region [ffff8881021093c0, ffff888102109490) [ 11.827558] [ 11.827745] The buggy address belongs to the physical page: [ 11.828150] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102109 [ 11.828409] flags: 0x200000000000000(node=0|zone=2) [ 11.828589] page_type: f5(slab) [ 11.828885] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000 [ 11.829696] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 11.830433] page dumped because: kasan: bad access detected [ 11.831026] [ 11.831183] Memory state around the buggy address: [ 11.831613] ffff888102109280: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.832223] ffff888102109300: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 11.832453] >ffff888102109380: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 11.832900] ^ [ 11.833443] ffff888102109400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.834110] ffff888102109480: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.834712] ==================================================================