Date
Dec. 3, 2024, 11:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.003779] ================================================================== [ 32.005139] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x17c/0x2f8 [ 32.006085] Read of size 1 at addr fff00000c5907140 by task kunit_try_catch/204 [ 32.007092] [ 32.007491] CPU: 0 UID: 0 PID: 204 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 32.008739] Tainted: [B]=BAD_PAGE, [N]=TEST [ 32.009424] Hardware name: linux,dummy-virt (DT) [ 32.010034] Call trace: [ 32.010504] show_stack+0x20/0x38 (C) [ 32.011097] dump_stack_lvl+0x8c/0xd0 [ 32.011657] print_report+0x118/0x5e0 [ 32.012308] kasan_report+0xc8/0x118 [ 32.012863] __kasan_check_byte+0x54/0x70 [ 32.013492] kmem_cache_destroy+0x34/0x218 [ 32.014086] kmem_cache_double_destroy+0x17c/0x2f8 [ 32.014705] kunit_try_run_case+0x14c/0x3d0 [ 32.015342] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.016169] kthread+0x24c/0x2d0 [ 32.016774] ret_from_fork+0x10/0x20 [ 32.017368] [ 32.017705] Allocated by task 204: [ 32.018249] kasan_save_stack+0x3c/0x68 [ 32.018842] kasan_save_track+0x20/0x40 [ 32.019414] kasan_save_alloc_info+0x40/0x58 [ 32.020018] __kasan_slab_alloc+0xa8/0xb0 [ 32.020665] kmem_cache_alloc_noprof+0x108/0x398 [ 32.021214] __kmem_cache_create_args+0x18c/0x2b0 [ 32.021981] kmem_cache_double_destroy+0xc8/0x2f8 [ 32.022628] kunit_try_run_case+0x14c/0x3d0 [ 32.023140] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.023990] kthread+0x24c/0x2d0 [ 32.024435] ret_from_fork+0x10/0x20 [ 32.024997] [ 32.025351] Freed by task 204: [ 32.025855] kasan_save_stack+0x3c/0x68 [ 32.026484] kasan_save_track+0x20/0x40 [ 32.026998] kasan_save_free_info+0x4c/0x78 [ 32.027757] __kasan_slab_free+0x6c/0x98 [ 32.028356] kmem_cache_free+0x118/0x470 [ 32.028952] slab_kmem_cache_release+0x38/0x50 [ 32.029594] kmem_cache_release+0x1c/0x30 [ 32.030169] kobject_put+0x17c/0x430 [ 32.030876] sysfs_slab_release+0x1c/0x30 [ 32.031385] kmem_cache_destroy+0x118/0x218 [ 32.032026] kmem_cache_double_destroy+0x130/0x2f8 [ 32.032581] kunit_try_run_case+0x14c/0x3d0 [ 32.033251] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.033858] kthread+0x24c/0x2d0 [ 32.034460] ret_from_fork+0x10/0x20 [ 32.034986] [ 32.035426] The buggy address belongs to the object at fff00000c5907140 [ 32.035426] which belongs to the cache kmem_cache of size 208 [ 32.036832] The buggy address is located 0 bytes inside of [ 32.036832] freed 208-byte region [fff00000c5907140, fff00000c5907210) [ 32.038152] [ 32.038458] The buggy address belongs to the physical page: [ 32.039159] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105907 [ 32.040114] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.040863] page_type: f5(slab) [ 32.041475] raw: 0bfffe0000000000 fff00000c0001000 dead000000000122 0000000000000000 [ 32.042381] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 32.043267] page dumped because: kasan: bad access detected [ 32.043899] [ 32.044244] Memory state around the buggy address: [ 32.044821] fff00000c5907000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.045818] fff00000c5907080: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 32.046843] >fff00000c5907100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 32.047668] ^ [ 32.048367] fff00000c5907180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.049247] fff00000c5907200: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.050187] ==================================================================
[ 27.349185] ================================================================== [ 27.350020] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bd/0x380 [ 27.350966] Read of size 1 at addr ffff88810298f000 by task kunit_try_catch/224 [ 27.351960] [ 27.352298] CPU: 0 UID: 0 PID: 224 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 27.353369] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.354099] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.354656] Call Trace: [ 27.355259] <TASK> [ 27.355527] dump_stack_lvl+0x73/0xb0 [ 27.356205] print_report+0xd1/0x640 [ 27.356488] ? __virt_addr_valid+0x1db/0x2d0 [ 27.356968] ? kasan_complete_mode_report_info+0x64/0x200 [ 27.357575] kasan_report+0x102/0x140 [ 27.358428] ? kmem_cache_double_destroy+0x1bd/0x380 [ 27.359213] ? kmem_cache_double_destroy+0x1bd/0x380 [ 27.359632] ? kmem_cache_double_destroy+0x1bd/0x380 [ 27.360489] __kasan_check_byte+0x3d/0x50 [ 27.361305] kmem_cache_destroy+0x25/0x1d0 [ 27.361989] kmem_cache_double_destroy+0x1bd/0x380 [ 27.362371] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 27.362841] ? finish_task_switch.isra.0+0x153/0x700 [ 27.363409] ? __switch_to+0x5d9/0xf60 [ 27.364009] ? __pfx_empty_cache_ctor+0x10/0x10 [ 27.365172] ? __pfx_read_tsc+0x10/0x10 [ 27.365531] ? ktime_get_ts64+0x86/0x230 [ 27.366089] kunit_try_run_case+0x1b3/0x490 [ 27.366482] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.366843] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 27.367747] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.368180] ? __kthread_parkme+0x82/0x160 [ 27.368610] ? preempt_count_sub+0x50/0x80 [ 27.368973] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.369803] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.370266] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.371269] kthread+0x257/0x310 [ 27.371698] ? __pfx_kthread+0x10/0x10 [ 27.372094] ret_from_fork+0x41/0x80 [ 27.372482] ? __pfx_kthread+0x10/0x10 [ 27.372777] ret_from_fork_asm+0x1a/0x30 [ 27.373365] </TASK> [ 27.373851] [ 27.374089] Allocated by task 224: [ 27.374428] kasan_save_stack+0x3d/0x60 [ 27.375322] kasan_save_track+0x18/0x40 [ 27.375793] kasan_save_alloc_info+0x3b/0x50 [ 27.376163] __kasan_slab_alloc+0x91/0xa0 [ 27.376595] kmem_cache_alloc_noprof+0x11e/0x3e0 [ 27.377098] __kmem_cache_create_args+0x177/0x250 [ 27.377575] kmem_cache_double_destroy+0xd3/0x380 [ 27.377942] kunit_try_run_case+0x1b3/0x490 [ 27.378269] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.378762] kthread+0x257/0x310 [ 27.379786] ret_from_fork+0x41/0x80 [ 27.380177] ret_from_fork_asm+0x1a/0x30 [ 27.380544] [ 27.380884] Freed by task 224: [ 27.381204] kasan_save_stack+0x3d/0x60 [ 27.381758] kasan_save_track+0x18/0x40 [ 27.382141] kasan_save_free_info+0x3f/0x60 [ 27.382413] __kasan_slab_free+0x56/0x70 [ 27.383364] kmem_cache_free+0x120/0x420 [ 27.383751] slab_kmem_cache_release+0x2e/0x40 [ 27.384277] kmem_cache_release+0x16/0x20 [ 27.384849] kobject_put+0x181/0x450 [ 27.385200] sysfs_slab_release+0x16/0x20 [ 27.385680] kmem_cache_destroy+0xf0/0x1d0 [ 27.386211] kmem_cache_double_destroy+0x14c/0x380 [ 27.387220] kunit_try_run_case+0x1b3/0x490 [ 27.387711] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.388220] kthread+0x257/0x310 [ 27.388851] ret_from_fork+0x41/0x80 [ 27.389138] ret_from_fork_asm+0x1a/0x30 [ 27.389749] [ 27.389977] The buggy address belongs to the object at ffff88810298f000 [ 27.389977] which belongs to the cache kmem_cache of size 208 [ 27.391213] The buggy address is located 0 bytes inside of [ 27.391213] freed 208-byte region [ffff88810298f000, ffff88810298f0d0) [ 27.392008] [ 27.392237] The buggy address belongs to the physical page: [ 27.392711] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10298f [ 27.393556] flags: 0x200000000000000(node=0|zone=2) [ 27.394011] page_type: f5(slab) [ 27.394301] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000 [ 27.394871] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 27.395261] page dumped because: kasan: bad access detected [ 27.395543] [ 27.395684] Memory state around the buggy address: [ 27.396097] ffff88810298ef00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 27.396685] ffff88810298ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.398041] >ffff88810298f000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.398758] ^ [ 27.399109] ffff88810298f080: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 27.399808] ffff88810298f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.400288] ==================================================================