Date
June 16, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.359476] ================================================================== [ 20.359573] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 20.359663] Free of addr fff00000c6e21001 by task kunit_try_catch/220 [ 20.359713] [ 20.359776] CPU: 0 UID: 0 PID: 220 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT [ 20.360416] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.360490] Hardware name: linux,dummy-virt (DT) [ 20.360577] Call trace: [ 20.360683] show_stack+0x20/0x38 (C) [ 20.360936] dump_stack_lvl+0x8c/0xd0 [ 20.361021] print_report+0x118/0x608 [ 20.361091] kasan_report_invalid_free+0xc0/0xe8 [ 20.361447] check_slab_allocation+0xfc/0x108 [ 20.361538] __kasan_slab_pre_free+0x2c/0x48 [ 20.361598] kmem_cache_free+0xf0/0x468 [ 20.362132] kmem_cache_invalid_free+0x184/0x3c8 [ 20.362226] kunit_try_run_case+0x170/0x3f0 [ 20.362354] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.362452] kthread+0x328/0x630 [ 20.362511] ret_from_fork+0x10/0x20 [ 20.362870] [ 20.362910] Allocated by task 220: [ 20.363166] kasan_save_stack+0x3c/0x68 [ 20.363439] kasan_save_track+0x20/0x40 [ 20.363688] kasan_save_alloc_info+0x40/0x58 [ 20.363962] __kasan_slab_alloc+0xa8/0xb0 [ 20.364025] kmem_cache_alloc_noprof+0x10c/0x398 [ 20.364101] kmem_cache_invalid_free+0x12c/0x3c8 [ 20.364149] kunit_try_run_case+0x170/0x3f0 [ 20.364772] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.365185] kthread+0x328/0x630 [ 20.365477] ret_from_fork+0x10/0x20 [ 20.365525] [ 20.365551] The buggy address belongs to the object at fff00000c6e21000 [ 20.365551] which belongs to the cache test_cache of size 200 [ 20.365726] The buggy address is located 1 bytes inside of [ 20.365726] 200-byte region [fff00000c6e21000, fff00000c6e210c8) [ 20.366098] [ 20.366495] The buggy address belongs to the physical page: [ 20.366903] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106e21 [ 20.367000] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.367067] page_type: f5(slab) [ 20.367121] raw: 0bfffe0000000000 fff00000c10dda00 dead000000000122 0000000000000000 [ 20.367183] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 20.367233] page dumped because: kasan: bad access detected [ 20.367270] [ 20.367294] Memory state around the buggy address: [ 20.367333] fff00000c6e20f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.367388] fff00000c6e20f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.367439] >fff00000c6e21000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.367484] ^ [ 20.367517] fff00000c6e21080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 20.369339] fff00000c6e21100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.369414] ==================================================================
[ 12.212290] ================================================================== [ 12.213500] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 12.214045] Free of addr ffff888102a2f001 by task kunit_try_catch/236 [ 12.214753] [ 12.214953] CPU: 0 UID: 0 PID: 236 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT(voluntary) [ 12.215005] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.215018] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.215039] Call Trace: [ 12.215053] <TASK> [ 12.215096] dump_stack_lvl+0x73/0xb0 [ 12.215132] print_report+0xd1/0x650 [ 12.215156] ? __virt_addr_valid+0x1db/0x2d0 [ 12.215182] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.215204] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.215229] kasan_report_invalid_free+0x10a/0x130 [ 12.215253] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.215278] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.215300] check_slab_allocation+0x11f/0x130 [ 12.215321] __kasan_slab_pre_free+0x28/0x40 [ 12.215340] kmem_cache_free+0xed/0x420 [ 12.215359] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.215378] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.215415] kmem_cache_invalid_free+0x1d8/0x460 [ 12.215438] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 12.215460] ? finish_task_switch.isra.0+0x153/0x700 [ 12.215483] ? __switch_to+0x47/0xf50 [ 12.215512] ? __pfx_read_tsc+0x10/0x10 [ 12.215533] ? ktime_get_ts64+0x86/0x230 [ 12.215558] kunit_try_run_case+0x1a5/0x480 [ 12.215583] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.215604] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.215626] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.215647] ? __kthread_parkme+0x82/0x180 [ 12.215667] ? preempt_count_sub+0x50/0x80 [ 12.215689] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.215712] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.215733] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.215754] kthread+0x337/0x6f0 [ 12.215773] ? trace_preempt_on+0x20/0xc0 [ 12.215797] ? __pfx_kthread+0x10/0x10 [ 12.215817] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.215836] ? calculate_sigpending+0x7b/0xa0 [ 12.215860] ? __pfx_kthread+0x10/0x10 [ 12.215880] ret_from_fork+0x116/0x1d0 [ 12.215898] ? __pfx_kthread+0x10/0x10 [ 12.215917] ret_from_fork_asm+0x1a/0x30 [ 12.215958] </TASK> [ 12.215970] [ 12.228217] Allocated by task 236: [ 12.228349] kasan_save_stack+0x45/0x70 [ 12.228675] kasan_save_track+0x18/0x40 [ 12.229025] kasan_save_alloc_info+0x3b/0x50 [ 12.229391] __kasan_slab_alloc+0x91/0xa0 [ 12.229804] kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.230214] kmem_cache_invalid_free+0x157/0x460 [ 12.230759] kunit_try_run_case+0x1a5/0x480 [ 12.231079] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.231242] kthread+0x337/0x6f0 [ 12.231355] ret_from_fork+0x116/0x1d0 [ 12.231546] ret_from_fork_asm+0x1a/0x30 [ 12.231892] [ 12.232058] The buggy address belongs to the object at ffff888102a2f000 [ 12.232058] which belongs to the cache test_cache of size 200 [ 12.233137] The buggy address is located 1 bytes inside of [ 12.233137] 200-byte region [ffff888102a2f000, ffff888102a2f0c8) [ 12.234066] [ 12.234140] The buggy address belongs to the physical page: [ 12.234299] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a2f [ 12.235063] flags: 0x200000000000000(node=0|zone=2) [ 12.235487] page_type: f5(slab) [ 12.235879] raw: 0200000000000000 ffff888101d34640 dead000000000122 0000000000000000 [ 12.236631] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 12.236976] page dumped because: kasan: bad access detected [ 12.237137] [ 12.237199] Memory state around the buggy address: [ 12.237342] ffff888102a2ef00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 12.237568] ffff888102a2ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.238043] >ffff888102a2f000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.238295] ^ [ 12.238491] ffff888102a2f080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 12.238832] ffff888102a2f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.239086] ==================================================================