Date
June 2, 2025, 2:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.606756] ================================================================== [ 19.607330] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 19.607614] Free of addr fff00000c3f52000 by task kunit_try_catch/199 [ 19.608259] [ 19.608619] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 19.608729] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.608759] Hardware name: linux,dummy-virt (DT) [ 19.608799] Call trace: [ 19.608825] show_stack+0x20/0x38 (C) [ 19.608892] dump_stack_lvl+0x8c/0xd0 [ 19.608950] print_report+0x118/0x608 [ 19.609009] kasan_report_invalid_free+0xc0/0xe8 [ 19.609065] check_slab_allocation+0xd4/0x108 [ 19.609118] __kasan_slab_pre_free+0x2c/0x48 [ 19.609191] kmem_cache_free+0xf0/0x468 [ 19.609249] kmem_cache_double_free+0x190/0x3c8 [ 19.609305] kunit_try_run_case+0x170/0x3f0 [ 19.609365] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.609425] kthread+0x318/0x620 [ 19.609479] ret_from_fork+0x10/0x20 [ 19.609551] [ 19.613954] Allocated by task 199: [ 19.614586] kasan_save_stack+0x3c/0x68 [ 19.615193] kasan_save_track+0x20/0x40 [ 19.615585] kasan_save_alloc_info+0x40/0x58 [ 19.615892] __kasan_slab_alloc+0xa8/0xb0 [ 19.616131] kmem_cache_alloc_noprof+0x10c/0x398 [ 19.616405] kmem_cache_double_free+0x12c/0x3c8 [ 19.616652] kunit_try_run_case+0x170/0x3f0 [ 19.616881] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.617548] kthread+0x318/0x620 [ 19.617777] ret_from_fork+0x10/0x20 [ 19.618009] [ 19.618283] Freed by task 199: [ 19.618889] kasan_save_stack+0x3c/0x68 [ 19.619126] kasan_save_track+0x20/0x40 [ 19.619350] kasan_save_free_info+0x4c/0x78 [ 19.619537] __kasan_slab_free+0x6c/0x98 [ 19.619726] kmem_cache_free+0x260/0x468 [ 19.619909] kmem_cache_double_free+0x140/0x3c8 [ 19.620105] kunit_try_run_case+0x170/0x3f0 [ 19.620286] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.620941] kthread+0x318/0x620 [ 19.621424] ret_from_fork+0x10/0x20 [ 19.621712] [ 19.621854] The buggy address belongs to the object at fff00000c3f52000 [ 19.621854] which belongs to the cache test_cache of size 200 [ 19.622741] The buggy address is located 0 bytes inside of [ 19.622741] 200-byte region [fff00000c3f52000, fff00000c3f520c8) [ 19.623068] [ 19.623191] The buggy address belongs to the physical page: [ 19.623364] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f52 [ 19.623610] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.623824] page_type: f5(slab) [ 19.623973] raw: 0bfffe0000000000 fff00000c1b49780 dead000000000122 0000000000000000 [ 19.624276] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 19.625198] page dumped because: kasan: bad access detected [ 19.625641] [ 19.625793] Memory state around the buggy address: [ 19.626493] fff00000c3f51f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.627614] fff00000c3f51f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.628106] >fff00000c3f52000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.628538] ^ [ 19.628777] fff00000c3f52080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 19.629001] fff00000c3f52100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.629467] ==================================================================
[ 13.367258] ================================================================== [ 13.368073] BUG: KASAN: double-free in kmem_cache_double_free+0x1e6/0x490 [ 13.368306] Free of addr ffff888102a33000 by task kunit_try_catch/217 [ 13.368501] [ 13.368612] CPU: 0 UID: 0 PID: 217 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 13.368653] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.368666] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.368688] Call Trace: [ 13.368700] <TASK> [ 13.368717] dump_stack_lvl+0x73/0xb0 [ 13.368746] print_report+0xd1/0x650 [ 13.368770] ? __virt_addr_valid+0x1db/0x2d0 [ 13.368796] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.368823] ? kmem_cache_double_free+0x1e6/0x490 [ 13.368850] kasan_report_invalid_free+0xfc/0x120 [ 13.368875] ? kmem_cache_double_free+0x1e6/0x490 [ 13.368903] ? kmem_cache_double_free+0x1e6/0x490 [ 13.368929] check_slab_allocation+0x101/0x130 [ 13.368952] __kasan_slab_pre_free+0x28/0x40 [ 13.368974] kmem_cache_free+0xee/0x420 [ 13.368996] ? kmem_cache_alloc_noprof+0x124/0x400 [ 13.369028] ? kmem_cache_double_free+0x1e6/0x490 [ 13.369057] kmem_cache_double_free+0x1e6/0x490 [ 13.369083] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 13.369108] ? finish_task_switch.isra.0+0x153/0x700 [ 13.369134] ? __switch_to+0x5d9/0xf60 [ 13.369166] ? __pfx_read_tsc+0x10/0x10 [ 13.369190] ? ktime_get_ts64+0x86/0x230 [ 13.369218] kunit_try_run_case+0x1a6/0x480 [ 13.369244] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.369268] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 13.369295] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.369321] ? __kthread_parkme+0x82/0x160 [ 13.369345] ? preempt_count_sub+0x50/0x80 [ 13.369371] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.369397] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.369425] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.369453] kthread+0x324/0x6e0 [ 13.369477] ? trace_preempt_on+0x20/0xc0 [ 13.369503] ? __pfx_kthread+0x10/0x10 [ 13.369527] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.369551] ? calculate_sigpending+0x7b/0xa0 [ 13.369576] ? __pfx_kthread+0x10/0x10 [ 13.369601] ret_from_fork+0x41/0x80 [ 13.369622] ? __pfx_kthread+0x10/0x10 [ 13.369647] ret_from_fork_asm+0x1a/0x30 [ 13.369681] </TASK> [ 13.369691] [ 13.384416] Allocated by task 217: [ 13.384554] kasan_save_stack+0x45/0x70 [ 13.384914] kasan_save_track+0x18/0x40 [ 13.385268] kasan_save_alloc_info+0x3b/0x50 [ 13.385641] __kasan_slab_alloc+0x91/0xa0 [ 13.386084] kmem_cache_alloc_noprof+0x124/0x400 [ 13.386498] kmem_cache_double_free+0x150/0x490 [ 13.386964] kunit_try_run_case+0x1a6/0x480 [ 13.387343] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.387943] kthread+0x324/0x6e0 [ 13.388307] ret_from_fork+0x41/0x80 [ 13.388715] ret_from_fork_asm+0x1a/0x30 [ 13.388897] [ 13.388967] Freed by task 217: [ 13.389087] kasan_save_stack+0x45/0x70 [ 13.389223] kasan_save_track+0x18/0x40 [ 13.389357] kasan_save_free_info+0x3f/0x60 [ 13.389505] __kasan_slab_free+0x56/0x70 [ 13.389846] kmem_cache_free+0x24b/0x420 [ 13.390201] kmem_cache_double_free+0x16b/0x490 [ 13.390607] kunit_try_run_case+0x1a6/0x480 [ 13.390986] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.391466] kthread+0x324/0x6e0 [ 13.391789] ret_from_fork+0x41/0x80 [ 13.392133] ret_from_fork_asm+0x1a/0x30 [ 13.392500] [ 13.392672] The buggy address belongs to the object at ffff888102a33000 [ 13.392672] which belongs to the cache test_cache of size 200 [ 13.393739] The buggy address is located 0 bytes inside of [ 13.393739] 200-byte region [ffff888102a33000, ffff888102a330c8) [ 13.394281] [ 13.394352] The buggy address belongs to the physical page: [ 13.394521] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a33 [ 13.395274] flags: 0x200000000000000(node=0|zone=2) [ 13.395779] page_type: f5(slab) [ 13.396124] raw: 0200000000000000 ffff888101689c80 dead000000000122 0000000000000000 [ 13.396803] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 13.397445] page dumped because: kasan: bad access detected [ 13.397648] [ 13.397740] Memory state around the buggy address: [ 13.397897] ffff888102a32f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.398121] ffff888102a32f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.398332] >ffff888102a33000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.398540] ^ [ 13.398845] ffff888102a33080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 13.399442] ffff888102a33100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.400136] ==================================================================