Date
May 26, 2025, 9:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.445580] ================================================================== [ 18.445749] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 18.445892] Free of addr fff00000c794d001 by task kunit_try_catch/211 [ 18.445980] [ 18.446512] CPU: 0 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7-next-20250526 #1 PREEMPT [ 18.446837] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.446926] Hardware name: linux,dummy-virt (DT) [ 18.447043] Call trace: [ 18.447102] show_stack+0x20/0x38 (C) [ 18.447209] dump_stack_lvl+0x8c/0xd0 [ 18.447304] print_report+0x118/0x608 [ 18.447438] kasan_report_invalid_free+0xc0/0xe8 [ 18.447532] check_slab_allocation+0xfc/0x108 [ 18.447732] __kasan_slab_pre_free+0x2c/0x48 [ 18.448060] kmem_cache_free+0xf0/0x470 [ 18.448225] kmem_cache_invalid_free+0x184/0x3c8 [ 18.448399] kunit_try_run_case+0x170/0x3f0 [ 18.448534] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.448658] kthread+0x328/0x630 [ 18.448745] ret_from_fork+0x10/0x20 [ 18.448873] [ 18.448938] Allocated by task 211: [ 18.449036] kasan_save_stack+0x3c/0x68 [ 18.449170] kasan_save_track+0x20/0x40 [ 18.449279] kasan_save_alloc_info+0x40/0x58 [ 18.449386] __kasan_slab_alloc+0xa8/0xb0 [ 18.449474] kmem_cache_alloc_noprof+0x10c/0x3a0 [ 18.449591] kmem_cache_invalid_free+0x12c/0x3c8 [ 18.449716] kunit_try_run_case+0x170/0x3f0 [ 18.449801] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.449933] kthread+0x328/0x630 [ 18.450033] ret_from_fork+0x10/0x20 [ 18.450139] [ 18.450200] The buggy address belongs to the object at fff00000c794d000 [ 18.450200] which belongs to the cache test_cache of size 200 [ 18.450365] The buggy address is located 1 bytes inside of [ 18.450365] 200-byte region [fff00000c794d000, fff00000c794d0c8) [ 18.450483] [ 18.450528] The buggy address belongs to the physical page: [ 18.450604] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10794d [ 18.450823] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.450935] page_type: f5(slab) [ 18.451025] raw: 0bfffe0000000000 fff00000c794a000 dead000000000122 0000000000000000 [ 18.451119] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 18.451200] page dumped because: kasan: bad access detected [ 18.451261] [ 18.451299] Memory state around the buggy address: [ 18.451390] fff00000c794cf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.451498] fff00000c794cf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.451582] >fff00000c794d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.451651] ^ [ 18.451696] fff00000c794d080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 18.451759] fff00000c794d100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.451835] ==================================================================
[ 11.712552] ================================================================== [ 11.714044] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 11.714806] Free of addr ffff888102a93001 by task kunit_try_catch/229 [ 11.715830] [ 11.716149] CPU: 1 UID: 0 PID: 229 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7-next-20250526 #1 PREEMPT(voluntary) [ 11.716200] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.716212] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.716235] Call Trace: [ 11.716248] <TASK> [ 11.716265] dump_stack_lvl+0x73/0xb0 [ 11.716293] print_report+0xd1/0x650 [ 11.716316] ? __virt_addr_valid+0x1db/0x2d0 [ 11.716341] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.716363] ? kmem_cache_invalid_free+0x1d8/0x460 [ 11.716399] kasan_report_invalid_free+0x10a/0x130 [ 11.716423] ? kmem_cache_invalid_free+0x1d8/0x460 [ 11.716479] ? kmem_cache_invalid_free+0x1d8/0x460 [ 11.716500] check_slab_allocation+0x11f/0x130 [ 11.716521] __kasan_slab_pre_free+0x28/0x40 [ 11.716542] kmem_cache_free+0xed/0x420 [ 11.716562] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 11.716582] ? kmem_cache_invalid_free+0x1d8/0x460 [ 11.716605] kmem_cache_invalid_free+0x1d8/0x460 [ 11.716626] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 11.716645] ? finish_task_switch.isra.0+0x153/0x700 [ 11.716667] ? __switch_to+0x47/0xf50 [ 11.716696] ? __pfx_read_tsc+0x10/0x10 [ 11.716727] ? ktime_get_ts64+0x86/0x230 [ 11.716752] kunit_try_run_case+0x1a5/0x480 [ 11.716773] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.716792] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.716817] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.716842] ? __kthread_parkme+0x82/0x180 [ 11.716862] ? preempt_count_sub+0x50/0x80 [ 11.716884] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.716904] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.716927] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.716951] kthread+0x337/0x6f0 [ 11.716970] ? trace_preempt_on+0x20/0xc0 [ 11.716992] ? __pfx_kthread+0x10/0x10 [ 11.717079] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.717103] ? calculate_sigpending+0x7b/0xa0 [ 11.717127] ? __pfx_kthread+0x10/0x10 [ 11.717149] ret_from_fork+0x116/0x1d0 [ 11.717167] ? __pfx_kthread+0x10/0x10 [ 11.717188] ret_from_fork_asm+0x1a/0x30 [ 11.717218] </TASK> [ 11.717229] [ 11.730631] Allocated by task 229: [ 11.730922] kasan_save_stack+0x45/0x70 [ 11.731309] kasan_save_track+0x18/0x40 [ 11.731615] kasan_save_alloc_info+0x3b/0x50 [ 11.731768] __kasan_slab_alloc+0x91/0xa0 [ 11.731904] kmem_cache_alloc_noprof+0x123/0x3f0 [ 11.732053] kmem_cache_invalid_free+0x157/0x460 [ 11.732652] kunit_try_run_case+0x1a5/0x480 [ 11.732875] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.733278] kthread+0x337/0x6f0 [ 11.733425] ret_from_fork+0x116/0x1d0 [ 11.733579] ret_from_fork_asm+0x1a/0x30 [ 11.733854] [ 11.733994] The buggy address belongs to the object at ffff888102a93000 [ 11.733994] which belongs to the cache test_cache of size 200 [ 11.734618] The buggy address is located 1 bytes inside of [ 11.734618] 200-byte region [ffff888102a93000, ffff888102a930c8) [ 11.735250] [ 11.735421] The buggy address belongs to the physical page: [ 11.735704] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a93 [ 11.736210] flags: 0x200000000000000(node=0|zone=2) [ 11.736497] page_type: f5(slab) [ 11.736688] raw: 0200000000000000 ffff8881017ca280 dead000000000122 0000000000000000 [ 11.737200] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 11.737542] page dumped because: kasan: bad access detected [ 11.737833] [ 11.737928] Memory state around the buggy address: [ 11.738233] ffff888102a92f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.738610] ffff888102a92f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.738912] >ffff888102a93000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.739339] ^ [ 11.739573] ffff888102a93080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 11.740066] ffff888102a93100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.740315] ==================================================================