Date
May 13, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.438017] ================================================================== [ 20.438224] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x174/0x300 [ 20.438324] Read of size 1 at addr fff00000c6617140 by task kunit_try_catch/215 [ 20.438434] [ 20.438498] CPU: 1 UID: 0 PID: 215 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT [ 20.438838] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.438922] Hardware name: linux,dummy-virt (DT) [ 20.438991] Call trace: [ 20.439047] show_stack+0x20/0x38 (C) [ 20.439235] dump_stack_lvl+0x8c/0xd0 [ 20.439704] print_report+0x118/0x608 [ 20.439868] kasan_report+0xdc/0x128 [ 20.439997] __kasan_check_byte+0x54/0x70 [ 20.440056] kmem_cache_destroy+0x34/0x218 [ 20.440157] kmem_cache_double_destroy+0x174/0x300 [ 20.440260] kunit_try_run_case+0x170/0x3f0 [ 20.440336] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.440452] kthread+0x328/0x630 [ 20.440506] ret_from_fork+0x10/0x20 [ 20.440599] [ 20.440654] Allocated by task 215: [ 20.440730] kasan_save_stack+0x3c/0x68 [ 20.440806] kasan_save_track+0x20/0x40 [ 20.440862] kasan_save_alloc_info+0x40/0x58 [ 20.440955] __kasan_slab_alloc+0xa8/0xb0 [ 20.441012] kmem_cache_alloc_noprof+0x10c/0x3a0 [ 20.441062] __kmem_cache_create_args+0x178/0x280 [ 20.441165] kmem_cache_double_destroy+0xc0/0x300 [ 20.441207] kunit_try_run_case+0x170/0x3f0 [ 20.441247] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.441293] kthread+0x328/0x630 [ 20.441331] ret_from_fork+0x10/0x20 [ 20.441370] [ 20.441391] Freed by task 215: [ 20.441421] kasan_save_stack+0x3c/0x68 [ 20.441462] kasan_save_track+0x20/0x40 [ 20.441500] kasan_save_free_info+0x4c/0x78 [ 20.441541] __kasan_slab_free+0x6c/0x98 [ 20.441586] kmem_cache_free+0x260/0x470 [ 20.441667] slab_kmem_cache_release+0x38/0x50 [ 20.441710] kmem_cache_release+0x1c/0x30 [ 20.441749] kobject_put+0x17c/0x430 [ 20.441791] sysfs_slab_release+0x1c/0x30 [ 20.441847] kmem_cache_destroy+0x118/0x218 [ 20.441945] kmem_cache_double_destroy+0x128/0x300 [ 20.442042] kunit_try_run_case+0x170/0x3f0 [ 20.442084] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.442881] kthread+0x328/0x630 [ 20.442942] ret_from_fork+0x10/0x20 [ 20.443002] [ 20.443031] The buggy address belongs to the object at fff00000c6617140 [ 20.443031] which belongs to the cache kmem_cache of size 208 [ 20.443100] The buggy address is located 0 bytes inside of [ 20.443100] freed 208-byte region [fff00000c6617140, fff00000c6617210) [ 20.443186] [ 20.443211] The buggy address belongs to the physical page: [ 20.443248] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106617 [ 20.443552] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.443702] page_type: f5(slab) [ 20.443878] raw: 0bfffe0000000000 fff00000c0001000 dead000000000122 0000000000000000 [ 20.444151] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 20.444206] page dumped because: kasan: bad access detected [ 20.444257] [ 20.444289] Memory state around the buggy address: [ 20.444347] fff00000c6617000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.444395] fff00000c6617080: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 20.444733] >fff00000c6617100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 20.444787] ^ [ 20.444828] fff00000c6617180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.444875] fff00000c6617200: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.444914] ==================================================================
[ 11.959425] ================================================================== [ 11.960100] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bf/0x380 [ 11.960687] Read of size 1 at addr ffff888100faf640 by task kunit_try_catch/232 [ 11.961508] [ 11.961754] CPU: 1 UID: 0 PID: 232 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) [ 11.961809] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.961821] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.961844] Call Trace: [ 11.961857] <TASK> [ 11.961876] dump_stack_lvl+0x73/0xb0 [ 11.961907] print_report+0xd1/0x650 [ 11.961931] ? __virt_addr_valid+0x1db/0x2d0 [ 11.961957] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.961977] ? kasan_complete_mode_report_info+0x64/0x200 [ 11.962000] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.962021] kasan_report+0x141/0x180 [ 11.962044] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.962070] ? kmem_cache_double_destroy+0x1bf/0x380 [ 11.962090] __kasan_check_byte+0x3d/0x50 [ 11.962114] kmem_cache_destroy+0x25/0x1d0 [ 11.962138] kmem_cache_double_destroy+0x1bf/0x380 [ 11.962159] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 11.962215] ? finish_task_switch.isra.0+0x153/0x700 [ 11.962241] ? __switch_to+0x47/0xf50 [ 11.962273] ? __pfx_read_tsc+0x10/0x10 [ 11.962296] ? ktime_get_ts64+0x86/0x230 [ 11.962321] kunit_try_run_case+0x1a5/0x480 [ 11.962347] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.962369] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.962393] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.962415] ? __kthread_parkme+0x82/0x180 [ 11.962437] ? preempt_count_sub+0x50/0x80 [ 11.962460] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.962490] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.962513] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.962559] kthread+0x337/0x6f0 [ 11.962579] ? trace_preempt_on+0x20/0xc0 [ 11.962603] ? __pfx_kthread+0x10/0x10 [ 11.962636] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.962657] ? calculate_sigpending+0x7b/0xa0 [ 11.962682] ? __pfx_kthread+0x10/0x10 [ 11.962704] ret_from_fork+0x116/0x1d0 [ 11.962721] ? __pfx_kthread+0x10/0x10 [ 11.962742] ret_from_fork_asm+0x1a/0x30 [ 11.962774] </TASK> [ 11.962786] [ 11.976990] Allocated by task 232: [ 11.977122] kasan_save_stack+0x45/0x70 [ 11.977455] kasan_save_track+0x18/0x40 [ 11.977929] kasan_save_alloc_info+0x3b/0x50 [ 11.978348] __kasan_slab_alloc+0x91/0xa0 [ 11.978518] kmem_cache_alloc_noprof+0x123/0x3f0 [ 11.979018] __kmem_cache_create_args+0x169/0x240 [ 11.979490] kmem_cache_double_destroy+0xd5/0x380 [ 11.979829] kunit_try_run_case+0x1a5/0x480 [ 11.979982] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.980160] kthread+0x337/0x6f0 [ 11.980467] ret_from_fork+0x116/0x1d0 [ 11.980932] ret_from_fork_asm+0x1a/0x30 [ 11.981321] [ 11.981485] Freed by task 232: [ 11.981866] kasan_save_stack+0x45/0x70 [ 11.982236] kasan_save_track+0x18/0x40 [ 11.982719] kasan_save_free_info+0x3f/0x60 [ 11.982957] __kasan_slab_free+0x56/0x70 [ 11.983097] kmem_cache_free+0x249/0x420 [ 11.983342] slab_kmem_cache_release+0x2e/0x40 [ 11.983787] kmem_cache_release+0x16/0x20 [ 11.984335] kobject_put+0x181/0x450 [ 11.984757] sysfs_slab_release+0x16/0x20 [ 11.985129] kmem_cache_destroy+0xf0/0x1d0 [ 11.985301] kmem_cache_double_destroy+0x14e/0x380 [ 11.985459] kunit_try_run_case+0x1a5/0x480 [ 11.985654] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.986194] kthread+0x337/0x6f0 [ 11.986513] ret_from_fork+0x116/0x1d0 [ 11.987007] ret_from_fork_asm+0x1a/0x30 [ 11.987411] [ 11.987582] The buggy address belongs to the object at ffff888100faf640 [ 11.987582] which belongs to the cache kmem_cache of size 208 [ 11.988171] The buggy address is located 0 bytes inside of [ 11.988171] freed 208-byte region [ffff888100faf640, ffff888100faf710) [ 11.989322] [ 11.989507] The buggy address belongs to the physical page: [ 11.989789] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100faf [ 11.990037] flags: 0x200000000000000(node=0|zone=2) [ 11.990213] page_type: f5(slab) [ 11.990419] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000 [ 11.990769] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 11.991312] page dumped because: kasan: bad access detected [ 11.991558] [ 11.991663] Memory state around the buggy address: [ 11.991845] ffff888100faf500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.992159] ffff888100faf580: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 11.992504] >ffff888100faf600: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 11.992926] ^ [ 11.993143] ffff888100faf680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.993509] ffff888100faf700: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.993938] ==================================================================