Date
July 16, 2025, 3:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.155099] ================================================================== [ 17.155315] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 17.155571] Free of addr fff00000c7923001 by task kunit_try_catch/211 [ 17.155699] [ 17.155802] CPU: 1 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.155947] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.155975] Hardware name: linux,dummy-virt (DT) [ 17.156290] Call trace: [ 17.156328] show_stack+0x20/0x38 (C) [ 17.156401] dump_stack_lvl+0x8c/0xd0 [ 17.156539] print_report+0x118/0x5d0 [ 17.156644] kasan_report_invalid_free+0xc0/0xe8 [ 17.156870] check_slab_allocation+0xfc/0x108 [ 17.156961] __kasan_slab_pre_free+0x2c/0x48 [ 17.157094] kmem_cache_free+0xf0/0x468 [ 17.157148] kmem_cache_invalid_free+0x184/0x3c8 [ 17.157465] kunit_try_run_case+0x170/0x3f0 [ 17.157608] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.157706] kthread+0x328/0x630 [ 17.157881] ret_from_fork+0x10/0x20 [ 17.157977] [ 17.158105] Allocated by task 211: [ 17.158175] kasan_save_stack+0x3c/0x68 [ 17.158245] kasan_save_track+0x20/0x40 [ 17.158566] kasan_save_alloc_info+0x40/0x58 [ 17.158747] __kasan_slab_alloc+0xa8/0xb0 [ 17.158903] kmem_cache_alloc_noprof+0x10c/0x398 [ 17.158991] kmem_cache_invalid_free+0x12c/0x3c8 [ 17.159089] kunit_try_run_case+0x170/0x3f0 [ 17.159240] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.159286] kthread+0x328/0x630 [ 17.159562] ret_from_fork+0x10/0x20 [ 17.159643] [ 17.159753] The buggy address belongs to the object at fff00000c7923000 [ 17.159753] which belongs to the cache test_cache of size 200 [ 17.159829] The buggy address is located 1 bytes inside of [ 17.159829] 200-byte region [fff00000c7923000, fff00000c79230c8) [ 17.159898] [ 17.159954] The buggy address belongs to the physical page: [ 17.159991] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107923 [ 17.160052] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.160223] page_type: f5(slab) [ 17.160475] raw: 0bfffe0000000000 fff00000ffe78000 dead000000000122 0000000000000000 [ 17.160560] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 17.160696] page dumped because: kasan: bad access detected [ 17.160815] [ 17.160878] Memory state around the buggy address: [ 17.160971] fff00000c7922f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.161016] fff00000c7922f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.161309] >fff00000c7923000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.161370] ^ [ 17.161515] fff00000c7923080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 17.161601] fff00000c7923100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.161767] ==================================================================
[ 13.285813] ================================================================== [ 13.287138] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 13.287395] Free of addr ffff888103939001 by task kunit_try_catch/228 [ 13.288325] [ 13.288534] CPU: 1 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.288733] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.288748] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.288779] Call Trace: [ 13.288792] <TASK> [ 13.288810] dump_stack_lvl+0x73/0xb0 [ 13.288846] print_report+0xd1/0x610 [ 13.288869] ? __virt_addr_valid+0x1db/0x2d0 [ 13.288896] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.288920] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.288946] kasan_report_invalid_free+0x10a/0x130 [ 13.288971] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.289000] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.289025] check_slab_allocation+0x11f/0x130 [ 13.289047] __kasan_slab_pre_free+0x28/0x40 [ 13.289068] kmem_cache_free+0xed/0x420 [ 13.289089] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.289110] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.289138] kmem_cache_invalid_free+0x1d8/0x460 [ 13.289163] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 13.289188] ? finish_task_switch.isra.0+0x153/0x700 [ 13.289213] ? __switch_to+0x47/0xf50 [ 13.289243] ? __pfx_read_tsc+0x10/0x10 [ 13.289266] ? ktime_get_ts64+0x86/0x230 [ 13.289291] kunit_try_run_case+0x1a5/0x480 [ 13.289319] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.289343] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.289369] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.289393] ? __kthread_parkme+0x82/0x180 [ 13.289416] ? preempt_count_sub+0x50/0x80 [ 13.289450] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.289475] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.289499] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.289525] kthread+0x337/0x6f0 [ 13.289545] ? trace_preempt_on+0x20/0xc0 [ 13.289570] ? __pfx_kthread+0x10/0x10 [ 13.289591] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.289613] ? calculate_sigpending+0x7b/0xa0 [ 13.289638] ? __pfx_kthread+0x10/0x10 [ 13.289660] ret_from_fork+0x116/0x1d0 [ 13.289679] ? __pfx_kthread+0x10/0x10 [ 13.289699] ret_from_fork_asm+0x1a/0x30 [ 13.289731] </TASK> [ 13.289742] [ 13.303180] Allocated by task 228: [ 13.303374] kasan_save_stack+0x45/0x70 [ 13.303703] kasan_save_track+0x18/0x40 [ 13.304410] kasan_save_alloc_info+0x3b/0x50 [ 13.304841] __kasan_slab_alloc+0x91/0xa0 [ 13.305262] kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.305631] kmem_cache_invalid_free+0x157/0x460 [ 13.306165] kunit_try_run_case+0x1a5/0x480 [ 13.306430] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.306856] kthread+0x337/0x6f0 [ 13.307232] ret_from_fork+0x116/0x1d0 [ 13.307417] ret_from_fork_asm+0x1a/0x30 [ 13.307853] [ 13.307954] The buggy address belongs to the object at ffff888103939000 [ 13.307954] which belongs to the cache test_cache of size 200 [ 13.308792] The buggy address is located 1 bytes inside of [ 13.308792] 200-byte region [ffff888103939000, ffff8881039390c8) [ 13.309848] [ 13.310199] The buggy address belongs to the physical page: [ 13.310446] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103939 [ 13.310923] flags: 0x200000000000000(node=0|zone=2) [ 13.311404] page_type: f5(slab) [ 13.311706] raw: 0200000000000000 ffff888101b6aa00 dead000000000122 0000000000000000 [ 13.312374] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 13.312827] page dumped because: kasan: bad access detected [ 13.313271] [ 13.313367] Memory state around the buggy address: [ 13.313796] ffff888103938f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.314667] ffff888103938f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.315159] >ffff888103939000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.315485] ^ [ 13.315642] ffff888103939080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 13.315941] ffff888103939100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.316231] ==================================================================