Date
May 12, 2025, 11:48 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.651974] ================================================================== [ 17.652125] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 17.652247] Free of addr fff00000c794b001 by task kunit_try_catch/211 [ 17.652342] [ 17.652421] CPU: 1 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT [ 17.652607] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.652662] Hardware name: linux,dummy-virt (DT) [ 17.652732] Call trace: [ 17.652779] show_stack+0x20/0x38 (C) [ 17.652887] dump_stack_lvl+0x8c/0xd0 [ 17.652993] print_report+0x118/0x608 [ 17.653612] kasan_report_invalid_free+0xc0/0xe8 [ 17.653779] check_slab_allocation+0xfc/0x108 [ 17.653917] __kasan_slab_pre_free+0x2c/0x48 [ 17.654036] kmem_cache_free+0xf0/0x470 [ 17.654154] kmem_cache_invalid_free+0x184/0x3c8 [ 17.654261] kunit_try_run_case+0x170/0x3f0 [ 17.654361] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.654453] kthread+0x328/0x630 [ 17.654542] ret_from_fork+0x10/0x20 [ 17.654657] [ 17.654698] Allocated by task 211: [ 17.654763] kasan_save_stack+0x3c/0x68 [ 17.655281] kasan_save_track+0x20/0x40 [ 17.655536] kasan_save_alloc_info+0x40/0x58 [ 17.655765] __kasan_slab_alloc+0xa8/0xb0 [ 17.655885] kmem_cache_alloc_noprof+0x10c/0x3a0 [ 17.656106] kmem_cache_invalid_free+0x12c/0x3c8 [ 17.656513] kunit_try_run_case+0x170/0x3f0 [ 17.656740] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.656980] kthread+0x328/0x630 [ 17.657148] ret_from_fork+0x10/0x20 [ 17.657232] [ 17.657362] The buggy address belongs to the object at fff00000c794b000 [ 17.657362] which belongs to the cache test_cache of size 200 [ 17.657748] The buggy address is located 1 bytes inside of [ 17.657748] 200-byte region [fff00000c794b000, fff00000c794b0c8) [ 17.658025] [ 17.658108] The buggy address belongs to the physical page: [ 17.658292] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10794b [ 17.658431] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.658530] page_type: f5(slab) [ 17.658611] raw: 0bfffe0000000000 fff00000c1096a00 dead000000000122 0000000000000000 [ 17.658712] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 17.659399] page dumped because: kasan: bad access detected [ 17.659492] [ 17.659707] Memory state around the buggy address: [ 17.659793] fff00000c794af00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.660254] fff00000c794af80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.660404] >fff00000c794b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.660549] ^ [ 17.660685] fff00000c794b080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 17.660805] fff00000c794b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.660890] ==================================================================
[ 17.582020] ================================================================== [ 17.582934] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 17.583327] Free of addr ffff888102b5c001 by task kunit_try_catch/228 [ 17.583966] [ 17.584065] CPU: 1 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT(voluntary) [ 17.584673] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.584701] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.584727] Call Trace: [ 17.584744] <TASK> [ 17.584768] dump_stack_lvl+0x73/0xb0 [ 17.584809] print_report+0xd1/0x650 [ 17.584834] ? __virt_addr_valid+0x1db/0x2d0 [ 17.584862] ? kasan_complete_mode_report_info+0x2a/0x200 [ 17.584887] ? kmem_cache_invalid_free+0x1d8/0x460 [ 17.584910] kasan_report_invalid_free+0x10a/0x130 [ 17.584936] ? kmem_cache_invalid_free+0x1d8/0x460 [ 17.584959] ? kmem_cache_invalid_free+0x1d8/0x460 [ 17.584981] check_slab_allocation+0x11f/0x130 [ 17.585005] __kasan_slab_pre_free+0x28/0x40 [ 17.585027] kmem_cache_free+0xed/0x420 [ 17.585050] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 17.585289] ? kmem_cache_invalid_free+0x1d8/0x460 [ 17.585325] kmem_cache_invalid_free+0x1d8/0x460 [ 17.585352] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 17.585373] ? finish_task_switch.isra.0+0x153/0x700 [ 17.585401] ? __switch_to+0x47/0xf50 [ 17.585431] ? __pfx_read_tsc+0x10/0x10 [ 17.585455] ? ktime_get_ts64+0x86/0x230 [ 17.585480] kunit_try_run_case+0x1a5/0x480 [ 17.585509] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.585533] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 17.585558] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 17.585599] ? __kthread_parkme+0x82/0x180 [ 17.585626] ? preempt_count_sub+0x50/0x80 [ 17.585653] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.585699] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.585724] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 17.585802] kthread+0x337/0x6f0 [ 17.585827] ? trace_preempt_on+0x20/0xc0 [ 17.585854] ? __pfx_kthread+0x10/0x10 [ 17.585876] ? _raw_spin_unlock_irq+0x47/0x80 [ 17.585897] ? calculate_sigpending+0x7b/0xa0 [ 17.585923] ? __pfx_kthread+0x10/0x10 [ 17.585946] ret_from_fork+0x116/0x1d0 [ 17.585966] ? __pfx_kthread+0x10/0x10 [ 17.585988] ret_from_fork_asm+0x1a/0x30 [ 17.586020] </TASK> [ 17.586035] [ 17.597812] Allocated by task 228: [ 17.598195] kasan_save_stack+0x45/0x70 [ 17.598399] kasan_save_track+0x18/0x40 [ 17.598506] kasan_save_alloc_info+0x3b/0x50 [ 17.598613] __kasan_slab_alloc+0x91/0xa0 [ 17.598938] kmem_cache_alloc_noprof+0x123/0x3f0 [ 17.599387] kmem_cache_invalid_free+0x157/0x460 [ 17.599725] kunit_try_run_case+0x1a5/0x480 [ 17.600007] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.600326] kthread+0x337/0x6f0 [ 17.600599] ret_from_fork+0x116/0x1d0 [ 17.600827] ret_from_fork_asm+0x1a/0x30 [ 17.601485] [ 17.601716] The buggy address belongs to the object at ffff888102b5c000 [ 17.601716] which belongs to the cache test_cache of size 200 [ 17.601989] The buggy address is located 1 bytes inside of [ 17.601989] 200-byte region [ffff888102b5c000, ffff888102b5c0c8) [ 17.602847] [ 17.603104] The buggy address belongs to the physical page: [ 17.603647] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b5c [ 17.604371] flags: 0x200000000000000(node=0|zone=2) [ 17.604778] page_type: f5(slab) [ 17.605077] raw: 0200000000000000 ffff888102b5a000 dead000000000122 0000000000000000 [ 17.605510] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 17.606000] page dumped because: kasan: bad access detected [ 17.606198] [ 17.606515] Memory state around the buggy address: [ 17.606762] ffff888102b5bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.607439] ffff888102b5bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.607841] >ffff888102b5c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.608075] ^ [ 17.608221] ffff888102b5c080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 17.608492] ffff888102b5c100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.608903] ==================================================================