Date
May 29, 2025, 7:10 a.m.
Environment | |
---|---|
qemu-arm64 | |
qemu-x86_64 |
[ 23.477808] ================================================================== [ 23.478071] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x174/0x300 [ 23.478294] Read of size 1 at addr fff00000c1764b40 by task kunit_try_catch/215 [ 23.478508] [ 23.478593] CPU: 0 UID: 0 PID: 215 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 23.478808] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.478909] Hardware name: linux,dummy-virt (DT) [ 23.479005] Call trace: [ 23.479077] show_stack+0x20/0x38 (C) [ 23.479205] dump_stack_lvl+0x8c/0xd0 [ 23.479341] print_report+0x118/0x608 [ 23.479531] kasan_report+0xdc/0x128 [ 23.479655] __kasan_check_byte+0x54/0x70 [ 23.479811] kmem_cache_destroy+0x34/0x218 [ 23.479964] kmem_cache_double_destroy+0x174/0x300 [ 23.480093] kunit_try_run_case+0x170/0x3f0 [ 23.480223] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.480353] kthread+0x328/0x630 [ 23.480479] ret_from_fork+0x10/0x20 [ 23.480604] [ 23.480651] Allocated by task 215: [ 23.480728] kasan_save_stack+0x3c/0x68 [ 23.480832] kasan_save_track+0x20/0x40 [ 23.480930] kasan_save_alloc_info+0x40/0x58 [ 23.481025] __kasan_slab_alloc+0xa8/0xb0 [ 23.481124] kmem_cache_alloc_noprof+0x10c/0x3a0 [ 23.481222] __kmem_cache_create_args+0x178/0x280 [ 23.481323] kmem_cache_double_destroy+0xc0/0x300 [ 23.481428] kunit_try_run_case+0x170/0x3f0 [ 23.481519] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.481625] kthread+0x328/0x630 [ 23.481713] ret_from_fork+0x10/0x20 [ 23.481810] [ 23.481864] Freed by task 215: [ 23.481931] kasan_save_stack+0x3c/0x68 [ 23.482120] kasan_save_track+0x20/0x40 [ 23.482220] kasan_save_free_info+0x4c/0x78 [ 23.482307] __kasan_slab_free+0x6c/0x98 [ 23.482480] kmem_cache_free+0x260/0x470 [ 23.482584] slab_kmem_cache_release+0x38/0x50 [ 23.482685] kmem_cache_release+0x1c/0x30 [ 23.482765] kobject_put+0x17c/0x430 [ 23.482913] sysfs_slab_release+0x1c/0x30 [ 23.482999] kmem_cache_destroy+0x118/0x218 [ 23.483090] kmem_cache_double_destroy+0x128/0x300 [ 23.483214] kunit_try_run_case+0x170/0x3f0 [ 23.483334] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.483442] kthread+0x328/0x630 [ 23.483509] ret_from_fork+0x10/0x20 [ 23.483575] [ 23.483654] The buggy address belongs to the object at fff00000c1764b40 [ 23.483654] which belongs to the cache kmem_cache of size 208 [ 23.483814] The buggy address is located 0 bytes inside of [ 23.483814] freed 208-byte region [fff00000c1764b40, fff00000c1764c10) [ 23.483965] [ 23.484021] The buggy address belongs to the physical page: [ 23.484133] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101764 [ 23.484298] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 23.484507] page_type: f5(slab) [ 23.484635] raw: 0bfffe0000000000 fff00000c0001000 dead000000000122 0000000000000000 [ 23.484798] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 23.484892] page dumped because: kasan: bad access detected [ 23.484970] [ 23.485058] Memory state around the buggy address: [ 23.485190] fff00000c1764a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.485350] fff00000c1764a80: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc [ 23.485480] >fff00000c1764b00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 23.485607] ^ [ 23.485698] fff00000c1764b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.485848] fff00000c1764c00: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.486016] ==================================================================
[ 11.694872] ================================================================== [ 11.695288] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bf/0x380 [ 11.695550] Read of size 1 at addr ffff8881011dab40 by task kunit_try_catch/232 [ 11.696190] [ 11.696297] CPU: 0 UID: 0 PID: 232 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 11.696349] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.696361] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.696384] Call Trace: [ 11.696397] <TASK> [ 11.696415] dump_stack_lvl+0x73/0xb0 [ 11.696444] print_report+0xd1/0x650 [ 11.696468] ? __virt_addr_valid+0x1db/0x2d0 [ 11.696492] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.696546] ? kasan_complete_mode_report_info+0x64/0x200 [ 11.696571] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.696593] kasan_report+0x141/0x180 [ 11.696627] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.696651] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.696673] __kasan_check_byte+0x3d/0x50 [ 11.696716] kmem_cache_destroy+0x25/0x1d0 [ 11.696740] kmem_cache_double_destroy+0x1bf/0x380 [ 11.696762] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 11.696783] ? finish_task_switch.isra.0+0x153/0x700 [ 11.696805] ? __switch_to+0x47/0xf50 [ 11.696835] ? __pfx_read_tsc+0x10/0x10 [ 11.696856] ? ktime_get_ts64+0x86/0x230 [ 11.696882] kunit_try_run_case+0x1a5/0x480 [ 11.696907] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.696927] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.696953] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.696978] ? __kthread_parkme+0x82/0x180 [ 11.697031] ? preempt_count_sub+0x50/0x80 [ 11.697054] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.697076] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.697100] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.697125] kthread+0x337/0x6f0 [ 11.697145] ? trace_preempt_on+0x20/0xc0 [ 11.697169] ? __pfx_kthread+0x10/0x10 [ 11.697190] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.697213] ? calculate_sigpending+0x7b/0xa0 [ 11.697237] ? __pfx_kthread+0x10/0x10 [ 11.697259] ret_from_fork+0x116/0x1d0 [ 11.697278] ? __pfx_kthread+0x10/0x10 [ 11.697299] ret_from_fork_asm+0x1a/0x30 [ 11.697330] </TASK> [ 11.697342] [ 11.711428] Allocated by task 232: [ 11.712107] kasan_save_stack+0x45/0x70 [ 11.712665] kasan_save_track+0x18/0x40 [ 11.713212] kasan_save_alloc_info+0x3b/0x50 [ 11.713379] __kasan_slab_alloc+0x91/0xa0 [ 11.713522] kmem_cache_alloc_noprof+0x123/0x3f0 [ 11.713698] __kmem_cache_create_args+0x169/0x240 [ 11.713861] kmem_cache_double_destroy+0xd5/0x380 [ 11.714301] kunit_try_run_case+0x1a5/0x480 [ 11.714464] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.714720] kthread+0x337/0x6f0 [ 11.714961] ret_from_fork+0x116/0x1d0 [ 11.715182] ret_from_fork_asm+0x1a/0x30 [ 11.715361] [ 11.715458] Freed by task 232: [ 11.715650] kasan_save_stack+0x45/0x70 [ 11.716011] kasan_save_track+0x18/0x40 [ 11.716251] kasan_save_free_info+0x3f/0x60 [ 11.716461] __kasan_slab_free+0x56/0x70 [ 11.716675] kmem_cache_free+0x249/0x420 [ 11.716899] slab_kmem_cache_release+0x2e/0x40 [ 11.717048] kmem_cache_release+0x16/0x20 [ 11.717563] kobject_put+0x181/0x450 [ 11.717769] sysfs_slab_release+0x16/0x20 [ 11.718342] kmem_cache_destroy+0xf0/0x1d0 [ 11.718566] kmem_cache_double_destroy+0x14e/0x380 [ 11.718968] kunit_try_run_case+0x1a5/0x480 [ 11.719249] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.719483] kthread+0x337/0x6f0 [ 11.719644] ret_from_fork+0x116/0x1d0 [ 11.720035] ret_from_fork_asm+0x1a/0x30 [ 11.720356] [ 11.720593] The buggy address belongs to the object at ffff8881011dab40 [ 11.720593] which belongs to the cache kmem_cache of size 208 [ 11.721332] The buggy address is located 0 bytes inside of [ 11.721332] freed 208-byte region [ffff8881011dab40, ffff8881011dac10) [ 11.722302] [ 11.722413] The buggy address belongs to the physical page: [ 11.722929] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1011da [ 11.723281] flags: 0x200000000000000(node=0|zone=2) [ 11.723504] page_type: f5(slab) [ 11.723671] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000 [ 11.724538] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 11.725360] page dumped because: kasan: bad access detected [ 11.725636] [ 11.725731] Memory state around the buggy address: [ 11.726271] ffff8881011daa00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.726733] ffff8881011daa80: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 11.727242] >ffff8881011dab00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 11.727513] ^ [ 11.727725] ffff8881011dab80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.728243] ffff8881011dac00: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.728557] ==================================================================