Date
July 9, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.492191] ================================================================== [ 17.492693] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 17.492773] Free of addr fff00000c6cdb001 by task kunit_try_catch/211 [ 17.492818] [ 17.492861] CPU: 1 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 17.492947] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.492975] Hardware name: linux,dummy-virt (DT) [ 17.493009] Call trace: [ 17.493062] show_stack+0x20/0x38 (C) [ 17.493607] dump_stack_lvl+0x8c/0xd0 [ 17.493758] print_report+0x118/0x608 [ 17.493807] kasan_report_invalid_free+0xc0/0xe8 [ 17.493858] check_slab_allocation+0xfc/0x108 [ 17.495144] __kasan_slab_pre_free+0x2c/0x48 [ 17.495252] kmem_cache_free+0xf0/0x468 [ 17.495303] kmem_cache_invalid_free+0x184/0x3c8 [ 17.495352] kunit_try_run_case+0x170/0x3f0 [ 17.495403] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.496485] kthread+0x328/0x630 [ 17.497359] ret_from_fork+0x10/0x20 [ 17.497858] [ 17.498185] Allocated by task 211: [ 17.498460] kasan_save_stack+0x3c/0x68 [ 17.499142] kasan_save_track+0x20/0x40 [ 17.499239] kasan_save_alloc_info+0x40/0x58 [ 17.499924] __kasan_slab_alloc+0xa8/0xb0 [ 17.500209] kmem_cache_alloc_noprof+0x10c/0x398 [ 17.500612] kmem_cache_invalid_free+0x12c/0x3c8 [ 17.501584] kunit_try_run_case+0x170/0x3f0 [ 17.501692] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.501737] kthread+0x328/0x630 [ 17.502342] ret_from_fork+0x10/0x20 [ 17.502716] [ 17.502948] The buggy address belongs to the object at fff00000c6cdb000 [ 17.502948] which belongs to the cache test_cache of size 200 [ 17.503162] The buggy address is located 1 bytes inside of [ 17.503162] 200-byte region [fff00000c6cdb000, fff00000c6cdb0c8) [ 17.504023] [ 17.504385] The buggy address belongs to the physical page: [ 17.505061] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106cdb [ 17.505295] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.505997] page_type: f5(slab) [ 17.506536] raw: 0bfffe0000000000 fff00000c56b2b40 dead000000000122 0000000000000000 [ 17.506942] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 17.507404] page dumped because: kasan: bad access detected [ 17.507513] [ 17.508063] Memory state around the buggy address: [ 17.508506] fff00000c6cdaf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.509179] fff00000c6cdaf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.509388] >fff00000c6cdb000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.509430] ^ [ 17.509615] fff00000c6cdb080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 17.509662] fff00000c6cdb100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.510098] ==================================================================
[ 13.270877] ================================================================== [ 13.271895] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 13.272990] Free of addr ffff8881038da001 by task kunit_try_catch/228 [ 13.273945] [ 13.274383] CPU: 1 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 13.274433] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.274445] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.274467] Call Trace: [ 13.274517] <TASK> [ 13.274535] dump_stack_lvl+0x73/0xb0 [ 13.274571] print_report+0xd1/0x650 [ 13.274627] ? __virt_addr_valid+0x1db/0x2d0 [ 13.274652] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.274782] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.274809] kasan_report_invalid_free+0x10a/0x130 [ 13.274834] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.274860] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.274885] check_slab_allocation+0x11f/0x130 [ 13.274907] __kasan_slab_pre_free+0x28/0x40 [ 13.274927] kmem_cache_free+0xed/0x420 [ 13.274947] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.274968] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.274996] kmem_cache_invalid_free+0x1d8/0x460 [ 13.275050] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 13.275095] ? finish_task_switch.isra.0+0x153/0x700 [ 13.275120] ? __switch_to+0x47/0xf50 [ 13.275149] ? __pfx_read_tsc+0x10/0x10 [ 13.275170] ? ktime_get_ts64+0x86/0x230 [ 13.275196] kunit_try_run_case+0x1a5/0x480 [ 13.275223] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.275246] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.275271] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.275294] ? __kthread_parkme+0x82/0x180 [ 13.275315] ? preempt_count_sub+0x50/0x80 [ 13.275338] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.275362] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.275386] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.275411] kthread+0x337/0x6f0 [ 13.275430] ? trace_preempt_on+0x20/0xc0 [ 13.275454] ? __pfx_kthread+0x10/0x10 [ 13.275474] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.275495] ? calculate_sigpending+0x7b/0xa0 [ 13.275518] ? __pfx_kthread+0x10/0x10 [ 13.275539] ret_from_fork+0x116/0x1d0 [ 13.275557] ? __pfx_kthread+0x10/0x10 [ 13.275577] ret_from_fork_asm+0x1a/0x30 [ 13.275608] </TASK> [ 13.275618] [ 13.289259] Allocated by task 228: [ 13.289430] kasan_save_stack+0x45/0x70 [ 13.289616] kasan_save_track+0x18/0x40 [ 13.289801] kasan_save_alloc_info+0x3b/0x50 [ 13.289996] __kasan_slab_alloc+0x91/0xa0 [ 13.290631] kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.290810] kmem_cache_invalid_free+0x157/0x460 [ 13.291018] kunit_try_run_case+0x1a5/0x480 [ 13.291522] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.291772] kthread+0x337/0x6f0 [ 13.291932] ret_from_fork+0x116/0x1d0 [ 13.292241] ret_from_fork_asm+0x1a/0x30 [ 13.292436] [ 13.292522] The buggy address belongs to the object at ffff8881038da000 [ 13.292522] which belongs to the cache test_cache of size 200 [ 13.293000] The buggy address is located 1 bytes inside of [ 13.293000] 200-byte region [ffff8881038da000, ffff8881038da0c8) [ 13.294241] [ 13.294530] The buggy address belongs to the physical page: [ 13.294767] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1038da [ 13.295228] flags: 0x200000000000000(node=0|zone=2) [ 13.295453] page_type: f5(slab) [ 13.295605] raw: 0200000000000000 ffff888101dbda00 dead000000000122 0000000000000000 [ 13.295923] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 13.296301] page dumped because: kasan: bad access detected [ 13.296538] [ 13.296627] Memory state around the buggy address: [ 13.296840] ffff8881038d9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.297204] ffff8881038d9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.297496] >ffff8881038da000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.297791] ^ [ 13.297940] ffff8881038da080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 13.299080] ffff8881038da100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.299323] ==================================================================