Date
July 15, 2025, 11:35 a.m.
| Environment | |
|---|---|
| e850-96 | |
| qemu-arm64 | |
| qemu-x86_64 |
[ 51.843655] ================================================================== [ 51.843841] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x174/0x300 [ 51.843977] Read of size 1 at addr ffff000801afa140 by task kunit_try_catch/296 [ 51.847538] [ 51.849025] CPU: 3 UID: 0 PID: 296 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250715 #1 PREEMPT [ 51.849082] Tainted: [B]=BAD_PAGE, [N]=TEST [ 51.849101] Hardware name: WinLink E850-96 board (DT) [ 51.849124] Call trace: [ 51.849138] show_stack+0x20/0x38 (C) [ 51.849175] dump_stack_lvl+0x8c/0xd0 [ 51.849210] print_report+0x118/0x5d0 [ 51.849238] kasan_report+0xdc/0x128 [ 51.849262] __kasan_check_byte+0x54/0x70 [ 51.849289] kmem_cache_destroy+0x34/0x218 [ 51.849323] kmem_cache_double_destroy+0x174/0x300 [ 51.849359] kunit_try_run_case+0x170/0x3f0 [ 51.849391] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 51.849428] kthread+0x328/0x630 [ 51.849456] ret_from_fork+0x10/0x20 [ 51.849491] [ 51.916981] Allocated by task 296: [ 51.920369] kasan_save_stack+0x3c/0x68 [ 51.924184] kasan_save_track+0x20/0x40 [ 51.928004] kasan_save_alloc_info+0x40/0x58 [ 51.932258] __kasan_slab_alloc+0xa8/0xb0 [ 51.936250] kmem_cache_alloc_noprof+0x10c/0x398 [ 51.940851] __kmem_cache_create_args+0x178/0x280 [ 51.945538] kmem_cache_double_destroy+0xc0/0x300 [ 51.950226] kunit_try_run_case+0x170/0x3f0 [ 51.954394] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 51.959861] kthread+0x328/0x630 [ 51.963072] ret_from_fork+0x10/0x20 [ 51.966632] [ 51.968109] Freed by task 296: [ 51.971147] kasan_save_stack+0x3c/0x68 [ 51.974965] kasan_save_track+0x20/0x40 [ 51.978785] kasan_save_free_info+0x4c/0x78 [ 51.982951] __kasan_slab_free+0x6c/0x98 [ 51.986857] kmem_cache_free+0x260/0x468 [ 51.990763] slab_kmem_cache_release+0x38/0x50 [ 51.995190] kmem_cache_release+0x1c/0x30 [ 51.999183] kobject_put+0x17c/0x420 [ 52.002742] sysfs_slab_release+0x1c/0x30 [ 52.006735] kmem_cache_destroy+0x118/0x218 [ 52.010902] kmem_cache_double_destroy+0x128/0x300 [ 52.015676] kunit_try_run_case+0x170/0x3f0 [ 52.019843] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 52.025312] kthread+0x328/0x630 [ 52.028524] ret_from_fork+0x10/0x20 [ 52.032082] [ 52.033559] The buggy address belongs to the object at ffff000801afa140 [ 52.033559] which belongs to the cache kmem_cache of size 208 [ 52.045974] The buggy address is located 0 bytes inside of [ 52.045974] freed 208-byte region [ffff000801afa140, ffff000801afa210) [ 52.058037] [ 52.059517] The buggy address belongs to the physical page: [ 52.065073] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x881afa [ 52.073056] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 52.080697] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 52.087638] page_type: f5(slab) [ 52.090775] raw: 0bfffe0000000040 ffff000800002000 dead000000000122 0000000000000000 [ 52.098494] raw: 0000000000000000 0000000080190019 00000000f5000000 0000000000000000 [ 52.106222] head: 0bfffe0000000040 ffff000800002000 dead000000000122 0000000000000000 [ 52.114032] head: 0000000000000000 0000000080190019 00000000f5000000 0000000000000000 [ 52.121845] head: 0bfffe0000000001 fffffdffe006be81 00000000ffffffff 00000000ffffffff [ 52.129657] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 52.137465] page dumped because: kasan: bad access detected [ 52.143018] [ 52.144493] Memory state around the buggy address: [ 52.149277] ffff000801afa000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.156476] ffff000801afa080: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 52.163681] >ffff000801afa100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 52.170882] ^ [ 52.176181] ffff000801afa180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.183386] ffff000801afa200: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 52.190587] ==================================================================
[ 31.996247] ================================================================== [ 31.996333] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x174/0x300 [ 31.996410] Read of size 1 at addr fff00000c5c5cc80 by task kunit_try_catch/247 [ 31.996475] [ 31.996516] CPU: 0 UID: 0 PID: 247 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250715 #1 PREEMPT [ 31.996605] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.996631] Hardware name: linux,dummy-virt (DT) [ 31.996665] Call trace: [ 31.996689] show_stack+0x20/0x38 (C) [ 31.996741] dump_stack_lvl+0x8c/0xd0 [ 31.996793] print_report+0x118/0x5d0 [ 31.996839] kasan_report+0xdc/0x128 [ 31.996884] __kasan_check_byte+0x54/0x70 [ 31.996929] kmem_cache_destroy+0x34/0x218 [ 31.996979] kmem_cache_double_destroy+0x174/0x300 [ 31.997032] kunit_try_run_case+0x170/0x3f0 [ 31.997080] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.997133] kthread+0x328/0x630 [ 31.997179] ret_from_fork+0x10/0x20 [ 31.997228] [ 31.997247] Allocated by task 247: [ 31.997277] kasan_save_stack+0x3c/0x68 [ 31.997320] kasan_save_track+0x20/0x40 [ 31.997360] kasan_save_alloc_info+0x40/0x58 [ 31.997399] __kasan_slab_alloc+0xa8/0xb0 [ 31.997444] kmem_cache_alloc_noprof+0x10c/0x398 [ 31.997488] __kmem_cache_create_args+0x178/0x280 [ 31.997528] kmem_cache_double_destroy+0xc0/0x300 [ 31.997570] kunit_try_run_case+0x170/0x3f0 [ 31.997606] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.997653] kthread+0x328/0x630 [ 31.997687] ret_from_fork+0x10/0x20 [ 31.997723] [ 31.997742] Freed by task 247: [ 31.997769] kasan_save_stack+0x3c/0x68 [ 31.997807] kasan_save_track+0x20/0x40 [ 31.997847] kasan_save_free_info+0x4c/0x78 [ 31.997886] __kasan_slab_free+0x6c/0x98 [ 31.997924] kmem_cache_free+0x260/0x468 [ 31.997961] slab_kmem_cache_release+0x38/0x50 [ 31.998003] kmem_cache_release+0x1c/0x30 [ 31.998042] kobject_put+0x17c/0x420 [ 31.998079] sysfs_slab_release+0x1c/0x30 [ 31.998119] kmem_cache_destroy+0x118/0x218 [ 31.998160] kmem_cache_double_destroy+0x128/0x300 [ 31.998202] kunit_try_run_case+0x170/0x3f0 [ 31.998239] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.998282] kthread+0x328/0x630 [ 31.998314] ret_from_fork+0x10/0x20 [ 31.998351] [ 31.998371] The buggy address belongs to the object at fff00000c5c5cc80 [ 31.998371] which belongs to the cache kmem_cache of size 208 [ 31.998427] The buggy address is located 0 bytes inside of [ 31.998427] freed 208-byte region [fff00000c5c5cc80, fff00000c5c5cd50) [ 31.998501] [ 31.998522] The buggy address belongs to the physical page: [ 31.998557] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105c5c [ 31.998612] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.998664] page_type: f5(slab) [ 31.998705] raw: 0bfffe0000000000 fff00000c0001000 dead000000000122 0000000000000000 [ 31.998755] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 31.998795] page dumped because: kasan: bad access detected [ 31.998828] [ 31.998845] Memory state around the buggy address: [ 31.998878] fff00000c5c5cb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.998920] fff00000c5c5cc00: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.998964] >fff00000c5c5cc80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.999002] ^ [ 31.999028] fff00000c5c5cd00: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 31.999071] fff00000c5c5cd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.999115] ==================================================================
[ 24.905680] ================================================================== [ 24.906178] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bf/0x380 [ 24.906719] Read of size 1 at addr ffff888101742c80 by task kunit_try_catch/263 [ 24.907345] [ 24.907471] CPU: 0 UID: 0 PID: 263 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250715 #1 PREEMPT(voluntary) [ 24.907568] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.907584] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.907628] Call Trace: [ 24.907729] <TASK> [ 24.907753] dump_stack_lvl+0x73/0xb0 [ 24.907793] print_report+0xd1/0x610 [ 24.907823] ? __virt_addr_valid+0x1db/0x2d0 [ 24.907855] ? kmem_cache_double_destroy+0x1bf/0x380 [ 24.907885] ? kasan_complete_mode_report_info+0x64/0x200 [ 24.907917] ? kmem_cache_double_destroy+0x1bf/0x380 [ 24.907947] kasan_report+0x141/0x180 [ 24.907975] ? kmem_cache_double_destroy+0x1bf/0x380 [ 24.908009] ? kmem_cache_double_destroy+0x1bf/0x380 [ 24.908040] __kasan_check_byte+0x3d/0x50 [ 24.908067] kmem_cache_destroy+0x25/0x1d0 [ 24.908101] kmem_cache_double_destroy+0x1bf/0x380 [ 24.908132] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 24.908161] ? finish_task_switch.isra.0+0x153/0x700 [ 24.908190] ? __switch_to+0x47/0xf80 [ 24.908228] ? __pfx_read_tsc+0x10/0x10 [ 24.908257] ? ktime_get_ts64+0x86/0x230 [ 24.908289] kunit_try_run_case+0x1a5/0x480 [ 24.908320] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.908346] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.908375] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.908403] ? __kthread_parkme+0x82/0x180 [ 24.908428] ? preempt_count_sub+0x50/0x80 [ 24.908457] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.908486] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.908518] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.908573] kthread+0x337/0x6f0 [ 24.908660] ? trace_preempt_on+0x20/0xc0 [ 24.908693] ? __pfx_kthread+0x10/0x10 [ 24.908720] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.908751] ? calculate_sigpending+0x7b/0xa0 [ 24.908782] ? __pfx_kthread+0x10/0x10 [ 24.908809] ret_from_fork+0x116/0x1d0 [ 24.908833] ? __pfx_kthread+0x10/0x10 [ 24.908859] ret_from_fork_asm+0x1a/0x30 [ 24.908902] </TASK> [ 24.908915] [ 24.920213] Allocated by task 263: [ 24.920569] kasan_save_stack+0x45/0x70 [ 24.920875] kasan_save_track+0x18/0x40 [ 24.921086] kasan_save_alloc_info+0x3b/0x50 [ 24.921297] __kasan_slab_alloc+0x91/0xa0 [ 24.921540] kmem_cache_alloc_noprof+0x123/0x3f0 [ 24.921816] __kmem_cache_create_args+0x169/0x240 [ 24.922072] kmem_cache_double_destroy+0xd5/0x380 [ 24.922289] kunit_try_run_case+0x1a5/0x480 [ 24.922503] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.922921] kthread+0x337/0x6f0 [ 24.923102] ret_from_fork+0x116/0x1d0 [ 24.923257] ret_from_fork_asm+0x1a/0x30 [ 24.923449] [ 24.923553] Freed by task 263: [ 24.923718] kasan_save_stack+0x45/0x70 [ 24.923910] kasan_save_track+0x18/0x40 [ 24.924137] kasan_save_free_info+0x3f/0x60 [ 24.924348] __kasan_slab_free+0x56/0x70 [ 24.924685] kmem_cache_free+0x249/0x420 [ 24.925304] slab_kmem_cache_release+0x2e/0x40 [ 24.925496] kmem_cache_release+0x16/0x20 [ 24.925820] kobject_put+0x181/0x450 [ 24.926002] sysfs_slab_release+0x16/0x20 [ 24.926194] kmem_cache_destroy+0xf0/0x1d0 [ 24.926403] kmem_cache_double_destroy+0x14e/0x380 [ 24.926650] kunit_try_run_case+0x1a5/0x480 [ 24.927264] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.927624] kthread+0x337/0x6f0 [ 24.927793] ret_from_fork+0x116/0x1d0 [ 24.928109] ret_from_fork_asm+0x1a/0x30 [ 24.928295] [ 24.928455] The buggy address belongs to the object at ffff888101742c80 [ 24.928455] which belongs to the cache kmem_cache of size 208 [ 24.929123] The buggy address is located 0 bytes inside of [ 24.929123] freed 208-byte region [ffff888101742c80, ffff888101742d50) [ 24.929624] [ 24.929752] The buggy address belongs to the physical page: [ 24.929983] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101742 [ 24.930303] flags: 0x200000000000000(node=0|zone=2) [ 24.931037] page_type: f5(slab) [ 24.931210] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000 [ 24.931500] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000 [ 24.932166] page dumped because: kasan: bad access detected [ 24.932411] [ 24.932506] Memory state around the buggy address: [ 24.932709] ffff888101742b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.933096] ffff888101742c00: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.933361] >ffff888101742c80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.933757] ^ [ 24.933886] ffff888101742d00: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 24.934194] ffff888101742d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.934535] ==================================================================