Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.097799] ================================================================== [ 24.100948] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x17c/0x2f8 [ 24.102045] Read of size 1 at addr fff00000c5679dc0 by task kunit_try_catch/204 [ 24.102683] [ 24.103058] CPU: 1 UID: 0 PID: 204 Comm: kunit_try_catch Tainted: G B N 6.14.11-rc1 #1 [ 24.103276] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.103356] Hardware name: linux,dummy-virt (DT) [ 24.103449] Call trace: [ 24.103517] show_stack+0x20/0x38 (C) [ 24.103666] dump_stack_lvl+0x8c/0xd0 [ 24.103818] print_report+0x118/0x608 [ 24.104025] kasan_report+0xdc/0x128 [ 24.104162] __kasan_check_byte+0x54/0x70 [ 24.104291] kmem_cache_destroy+0x34/0x218 [ 24.104362] kmem_cache_double_destroy+0x17c/0x2f8 [ 24.104424] kunit_try_run_case+0x170/0x3f0 [ 24.104484] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.104548] kthread+0x318/0x620 [ 24.104609] ret_from_fork+0x10/0x20 [ 24.104669] [ 24.110950] Allocated by task 204: [ 24.111395] kasan_save_stack+0x3c/0x68 [ 24.111953] kasan_save_track+0x20/0x40 [ 24.112489] kasan_save_alloc_info+0x40/0x58 [ 24.114326] __kasan_slab_alloc+0xa8/0xb0 [ 24.114875] kmem_cache_alloc_noprof+0x10c/0x398 [ 24.115462] __kmem_cache_create_args+0x18c/0x2b0 [ 24.116039] kmem_cache_double_destroy+0xc8/0x2f8 [ 24.116577] kunit_try_run_case+0x170/0x3f0 [ 24.118106] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.118702] kthread+0x318/0x620 [ 24.119191] ret_from_fork+0x10/0x20 [ 24.120101] [ 24.120348] Freed by task 204: [ 24.120806] kasan_save_stack+0x3c/0x68 [ 24.122178] kasan_save_track+0x20/0x40 [ 24.122558] kasan_save_free_info+0x4c/0x78 [ 24.123344] __kasan_slab_free+0x6c/0x98 [ 24.124192] kmem_cache_free+0x260/0x468 [ 24.124963] slab_kmem_cache_release+0x38/0x50 [ 24.126030] kmem_cache_release+0x1c/0x30 [ 24.126470] kobject_put+0x17c/0x420 [ 24.127138] sysfs_slab_release+0x1c/0x30 [ 24.127975] kmem_cache_destroy+0x118/0x218 [ 24.128651] kmem_cache_double_destroy+0x130/0x2f8 [ 24.129574] kunit_try_run_case+0x170/0x3f0 [ 24.130327] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.131038] kthread+0x318/0x620 [ 24.131571] ret_from_fork+0x10/0x20 [ 24.132056] [ 24.132380] The buggy address belongs to the object at fff00000c5679dc0 [ 24.132380] which belongs to the cache kmem_cache of size 208 [ 24.134343] The buggy address is located 0 bytes inside of [ 24.134343] freed 208-byte region [fff00000c5679dc0, fff00000c5679e90) [ 24.135455] [ 24.135725] The buggy address belongs to the physical page: [ 24.136668] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105679 [ 24.137814] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.138559] page_type: f5(slab) [ 24.139049] raw: 0bfffe0000000000 fff00000c0001000 dead000000000122 0000000000000000 [ 24.139940] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 24.140735] page dumped because: kasan: bad access detected [ 24.141530] [ 24.141868] Memory state around the buggy address: [ 24.142957] fff00000c5679c80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.143859] fff00000c5679d00: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 24.144609] >fff00000c5679d80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 24.145536] ^ [ 24.146279] fff00000c5679e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.147091] fff00000c5679e80: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.148033] ==================================================================
[ 18.824699] ================================================================== [ 18.825464] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bd/0x380 [ 18.826833] Read of size 1 at addr ffff888101da9640 by task kunit_try_catch/223 [ 18.827878] [ 18.828171] CPU: 1 UID: 0 PID: 223 Comm: kunit_try_catch Tainted: G B N 6.14.11-rc1 #1 [ 18.828531] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.828572] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.828614] Call Trace: [ 18.828646] <TASK> [ 18.828682] dump_stack_lvl+0x73/0xb0 [ 18.828758] print_report+0xd1/0x650 [ 18.828803] ? __virt_addr_valid+0x1db/0x2d0 [ 18.828847] ? kmem_cache_double_destroy+0x1bd/0x380 [ 18.828915] ? kasan_complete_mode_report_info+0x64/0x200 [ 18.828959] ? kmem_cache_double_destroy+0x1bd/0x380 [ 18.828990] kasan_report+0x140/0x180 [ 18.829019] ? kmem_cache_double_destroy+0x1bd/0x380 [ 18.829052] ? kmem_cache_double_destroy+0x1bd/0x380 [ 18.829082] __kasan_check_byte+0x3d/0x50 [ 18.829108] kmem_cache_destroy+0x25/0x1d0 [ 18.829137] kmem_cache_double_destroy+0x1bd/0x380 [ 18.829489] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 18.829524] ? finish_task_switch.isra.0+0x153/0x700 [ 18.829556] ? __switch_to+0x5d9/0xf60 [ 18.829595] ? __pfx_empty_cache_ctor+0x10/0x10 [ 18.829622] ? __pfx_read_tsc+0x10/0x10 [ 18.829650] ? ktime_get_ts64+0x86/0x230 [ 18.829683] kunit_try_run_case+0x1a6/0x480 [ 18.829717] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.829754] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 18.829809] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 18.829874] ? __kthread_parkme+0x82/0x160 [ 18.829915] ? preempt_count_sub+0x50/0x80 [ 18.829948] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.829977] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.830012] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 18.830045] kthread+0x324/0x6e0 [ 18.830072] ? trace_preempt_on+0x20/0xc0 [ 18.830104] ? __pfx_kthread+0x10/0x10 [ 18.830133] ? _raw_spin_unlock_irq+0x47/0x80 [ 18.830161] ? calculate_sigpending+0x7b/0xa0 [ 18.830190] ? __pfx_kthread+0x10/0x10 [ 18.830218] ret_from_fork+0x41/0x80 [ 18.830243] ? __pfx_kthread+0x10/0x10 [ 18.830271] ret_from_fork_asm+0x1a/0x30 [ 18.830323] </TASK> [ 18.830342] [ 18.847190] Allocated by task 223: [ 18.847826] kasan_save_stack+0x45/0x70 [ 18.848356] kasan_save_track+0x18/0x40 [ 18.849233] kasan_save_alloc_info+0x3b/0x50 [ 18.849880] __kasan_slab_alloc+0x91/0xa0 [ 18.850236] kmem_cache_alloc_noprof+0x124/0x400 [ 18.850938] __kmem_cache_create_args+0x177/0x250 [ 18.851347] kmem_cache_double_destroy+0xd3/0x380 [ 18.851995] kunit_try_run_case+0x1a6/0x480 [ 18.852353] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.853377] kthread+0x324/0x6e0 [ 18.853653] ret_from_fork+0x41/0x80 [ 18.853921] ret_from_fork_asm+0x1a/0x30 [ 18.854185] [ 18.854323] Freed by task 223: [ 18.854543] kasan_save_stack+0x45/0x70 [ 18.855991] kasan_save_track+0x18/0x40 [ 18.856334] kasan_save_free_info+0x3f/0x60 [ 18.856620] __kasan_slab_free+0x56/0x70 [ 18.856899] kmem_cache_free+0x24b/0x420 [ 18.857113] slab_kmem_cache_release+0x2e/0x40 [ 18.858237] kmem_cache_release+0x16/0x20 [ 18.858639] kobject_put+0x181/0x450 [ 18.859175] sysfs_slab_release+0x16/0x20 [ 18.859667] kmem_cache_destroy+0xf0/0x1d0 [ 18.860175] kmem_cache_double_destroy+0x14c/0x380 [ 18.861101] kunit_try_run_case+0x1a6/0x480 [ 18.861693] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.862002] kthread+0x324/0x6e0 [ 18.862291] ret_from_fork+0x41/0x80 [ 18.862790] ret_from_fork_asm+0x1a/0x30 [ 18.863119] [ 18.863614] The buggy address belongs to the object at ffff888101da9640 [ 18.863614] which belongs to the cache kmem_cache of size 208 [ 18.865070] The buggy address is located 0 bytes inside of [ 18.865070] freed 208-byte region [ffff888101da9640, ffff888101da9710) [ 18.866208] [ 18.866756] The buggy address belongs to the physical page: [ 18.867231] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101da9 [ 18.867722] flags: 0x200000000000000(node=0|zone=2) [ 18.868576] page_type: f5(slab) [ 18.868809] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000 [ 18.869562] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 18.870197] page dumped because: kasan: bad access detected [ 18.870694] [ 18.870909] Memory state around the buggy address: [ 18.871266] ffff888101da9500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.872282] ffff888101da9580: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 18.873063] >ffff888101da9600: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 18.873641] ^ [ 18.874193] ffff888101da9680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.874898] ffff888101da9700: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.875697] ==================================================================