Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.836988] ================================================================== [ 23.838969] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 23.839744] Free of addr fff00000c64be000 by task kunit_try_catch/198 [ 23.840509] [ 23.840856] CPU: 1 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B N 6.14.11-rc1 #1 [ 23.841577] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.841659] Hardware name: linux,dummy-virt (DT) [ 23.841747] Call trace: [ 23.841816] show_stack+0x20/0x38 (C) [ 23.841976] dump_stack_lvl+0x8c/0xd0 [ 23.842116] print_report+0x118/0x608 [ 23.842203] kasan_report_invalid_free+0xc0/0xe8 [ 23.842272] check_slab_allocation+0xd4/0x108 [ 23.842333] __kasan_slab_pre_free+0x2c/0x48 [ 23.842391] kmem_cache_free+0xf0/0x468 [ 23.842454] kmem_cache_double_free+0x190/0x3c8 [ 23.842515] kunit_try_run_case+0x170/0x3f0 [ 23.842578] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.842642] kthread+0x318/0x620 [ 23.842699] ret_from_fork+0x10/0x20 [ 23.842760] [ 23.851965] Allocated by task 198: [ 23.852526] kasan_save_stack+0x3c/0x68 [ 23.853367] kasan_save_track+0x20/0x40 [ 23.854212] kasan_save_alloc_info+0x40/0x58 [ 23.854857] __kasan_slab_alloc+0xa8/0xb0 [ 23.855404] kmem_cache_alloc_noprof+0x10c/0x398 [ 23.856030] kmem_cache_double_free+0x12c/0x3c8 [ 23.856666] kunit_try_run_case+0x170/0x3f0 [ 23.857511] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.858243] kthread+0x318/0x620 [ 23.858781] ret_from_fork+0x10/0x20 [ 23.859321] [ 23.859626] Freed by task 198: [ 23.860018] kasan_save_stack+0x3c/0x68 [ 23.860549] kasan_save_track+0x20/0x40 [ 23.861106] kasan_save_free_info+0x4c/0x78 [ 23.862153] __kasan_slab_free+0x6c/0x98 [ 23.862603] kmem_cache_free+0x260/0x468 [ 23.863155] kmem_cache_double_free+0x140/0x3c8 [ 23.863638] kunit_try_run_case+0x170/0x3f0 [ 23.864069] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.865186] kthread+0x318/0x620 [ 23.865609] ret_from_fork+0x10/0x20 [ 23.866331] [ 23.866628] The buggy address belongs to the object at fff00000c64be000 [ 23.866628] which belongs to the cache test_cache of size 200 [ 23.868140] The buggy address is located 0 bytes inside of [ 23.868140] 200-byte region [fff00000c64be000, fff00000c64be0c8) [ 23.869232] [ 23.869580] The buggy address belongs to the physical page: [ 23.870699] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1064be [ 23.871503] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 23.872206] page_type: f5(slab) [ 23.872737] raw: 0bfffe0000000000 fff00000c5679b40 dead000000000122 0000000000000000 [ 23.874068] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 23.874956] page dumped because: kasan: bad access detected [ 23.875588] [ 23.875934] Memory state around the buggy address: [ 23.876482] fff00000c64bdf00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 23.877638] fff00000c64bdf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.878366] >fff00000c64be000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.879055] ^ [ 23.879919] fff00000c64be080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 23.880657] fff00000c64be100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.881707] ==================================================================
[ 18.612657] ================================================================== [ 18.613156] BUG: KASAN: double-free in kmem_cache_double_free+0x1e6/0x490 [ 18.613550] Free of addr ffff888102cab000 by task kunit_try_catch/217 [ 18.614103] [ 18.614614] CPU: 0 UID: 0 PID: 217 Comm: kunit_try_catch Tainted: G B N 6.14.11-rc1 #1 [ 18.614725] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.614750] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.614791] Call Trace: [ 18.614822] <TASK> [ 18.614882] dump_stack_lvl+0x73/0xb0 [ 18.614968] print_report+0xd1/0x650 [ 18.615015] ? __virt_addr_valid+0x1db/0x2d0 [ 18.615064] ? kasan_complete_mode_report_info+0x64/0x200 [ 18.615121] ? kmem_cache_double_free+0x1e6/0x490 [ 18.615175] kasan_report_invalid_free+0xfc/0x120 [ 18.615229] ? kmem_cache_double_free+0x1e6/0x490 [ 18.615291] ? kmem_cache_double_free+0x1e6/0x490 [ 18.615341] check_slab_allocation+0x101/0x130 [ 18.615385] __kasan_slab_pre_free+0x28/0x40 [ 18.615434] kmem_cache_free+0xee/0x420 [ 18.615484] ? kasan_save_track+0x18/0x40 [ 18.615531] ? kasan_save_track+0x18/0x40 [ 18.615578] ? kasan_save_stack+0x45/0x70 [ 18.615625] ? kmem_cache_double_free+0x1e6/0x490 [ 18.615679] ? __kasan_slab_free+0x61/0x70 [ 18.615742] kmem_cache_double_free+0x1e6/0x490 [ 18.615795] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 18.615844] ? finish_task_switch.isra.0+0x153/0x700 [ 18.615919] ? __switch_to+0x5d9/0xf60 [ 18.615993] ? __pfx_read_tsc+0x10/0x10 [ 18.616047] ? ktime_get_ts64+0x86/0x230 [ 18.616110] kunit_try_run_case+0x1a6/0x480 [ 18.616174] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.616230] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 18.616293] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 18.616353] ? __kthread_parkme+0x82/0x160 [ 18.616400] ? preempt_count_sub+0x50/0x80 [ 18.616446] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.616488] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.616537] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 18.616582] kthread+0x324/0x6e0 [ 18.616618] ? trace_preempt_on+0x20/0xc0 [ 18.616659] ? __pfx_kthread+0x10/0x10 [ 18.616697] ? _raw_spin_unlock_irq+0x47/0x80 [ 18.616740] ? calculate_sigpending+0x7b/0xa0 [ 18.616780] ? __pfx_kthread+0x10/0x10 [ 18.616819] ret_from_fork+0x41/0x80 [ 18.616891] ? __pfx_kthread+0x10/0x10 [ 18.616933] ret_from_fork_asm+0x1a/0x30 [ 18.617010] </TASK> [ 18.617034] [ 18.635943] Allocated by task 217: [ 18.636174] kasan_save_stack+0x45/0x70 [ 18.636660] kasan_save_track+0x18/0x40 [ 18.637291] kasan_save_alloc_info+0x3b/0x50 [ 18.637825] __kasan_slab_alloc+0x91/0xa0 [ 18.638474] kmem_cache_alloc_noprof+0x124/0x400 [ 18.638903] kmem_cache_double_free+0x150/0x490 [ 18.639476] kunit_try_run_case+0x1a6/0x480 [ 18.639853] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.640465] kthread+0x324/0x6e0 [ 18.640911] ret_from_fork+0x41/0x80 [ 18.641496] ret_from_fork_asm+0x1a/0x30 [ 18.641950] [ 18.642150] Freed by task 217: [ 18.642519] kasan_save_stack+0x45/0x70 [ 18.643169] kasan_save_track+0x18/0x40 [ 18.643756] kasan_save_free_info+0x3f/0x60 [ 18.644244] __kasan_slab_free+0x56/0x70 [ 18.644745] kmem_cache_free+0x24b/0x420 [ 18.645184] kmem_cache_double_free+0x16b/0x490 [ 18.645454] kunit_try_run_case+0x1a6/0x480 [ 18.645653] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.646065] kthread+0x324/0x6e0 [ 18.646576] ret_from_fork+0x41/0x80 [ 18.647148] ret_from_fork_asm+0x1a/0x30 [ 18.647698] [ 18.647962] The buggy address belongs to the object at ffff888102cab000 [ 18.647962] which belongs to the cache test_cache of size 200 [ 18.649482] The buggy address is located 0 bytes inside of [ 18.649482] 200-byte region [ffff888102cab000, ffff888102cab0c8) [ 18.650536] [ 18.650756] The buggy address belongs to the physical page: [ 18.651400] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102cab [ 18.652095] flags: 0x200000000000000(node=0|zone=2) [ 18.652695] page_type: f5(slab) [ 18.653102] raw: 0200000000000000 ffff8881003b1000 dead000000000122 0000000000000000 [ 18.653773] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 18.654450] page dumped because: kasan: bad access detected [ 18.654598] [ 18.654668] Memory state around the buggy address: [ 18.654798] ffff888102caaf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.655082] ffff888102caaf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.655506] >ffff888102cab000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.657210] ^ [ 18.657555] ffff888102cab080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 18.657843] ffff888102cab100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.658450] ==================================================================