Date
Nov. 22, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 35.102753] ================================================================== [ 35.103537] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 35.104771] Free of addr fff00000c6af7000 by task kunit_try_catch/198 [ 35.106416] [ 35.107057] CPU: 0 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241122 #1 [ 35.109307] Tainted: [B]=BAD_PAGE, [N]=TEST [ 35.110337] Hardware name: linux,dummy-virt (DT) [ 35.111064] Call trace: [ 35.111592] show_stack+0x20/0x38 (C) [ 35.112295] dump_stack_lvl+0x8c/0xd0 [ 35.113149] print_report+0x118/0x5e0 [ 35.113715] kasan_report_invalid_free+0xb0/0xd8 [ 35.114845] check_slab_allocation+0xd4/0x108 [ 35.115542] __kasan_slab_pre_free+0x2c/0x48 [ 35.116235] kmem_cache_free+0xf0/0x470 [ 35.116889] kmem_cache_double_free+0x190/0x3c8 [ 35.117646] kunit_try_run_case+0x14c/0x3d0 [ 35.118596] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.119575] kthread+0x24c/0x2d0 [ 35.120192] ret_from_fork+0x10/0x20 [ 35.120833] [ 35.121700] Allocated by task 198: [ 35.122185] kasan_save_stack+0x3c/0x68 [ 35.122999] kasan_save_track+0x20/0x40 [ 35.123739] kasan_save_alloc_info+0x40/0x58 [ 35.124509] __kasan_slab_alloc+0xa8/0xb0 [ 35.125521] kmem_cache_alloc_noprof+0x108/0x3a0 [ 35.126769] kmem_cache_double_free+0x12c/0x3c8 [ 35.127835] kunit_try_run_case+0x14c/0x3d0 [ 35.128663] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.130558] kthread+0x24c/0x2d0 [ 35.131487] ret_from_fork+0x10/0x20 [ 35.132272] [ 35.133019] Freed by task 198: [ 35.133488] kasan_save_stack+0x3c/0x68 [ 35.134589] kasan_save_track+0x20/0x40 [ 35.135090] kasan_save_free_info+0x4c/0x78 [ 35.136597] __kasan_slab_free+0x6c/0x98 [ 35.137158] kmem_cache_free+0x118/0x470 [ 35.137974] kmem_cache_double_free+0x140/0x3c8 [ 35.138713] kunit_try_run_case+0x14c/0x3d0 [ 35.139424] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.140245] kthread+0x24c/0x2d0 [ 35.140854] ret_from_fork+0x10/0x20 [ 35.141561] [ 35.141832] The buggy address belongs to the object at fff00000c6af7000 [ 35.141832] which belongs to the cache test_cache of size 200 [ 35.143561] The buggy address is located 0 bytes inside of [ 35.143561] 200-byte region [fff00000c6af7000, fff00000c6af70c8) [ 35.145265] [ 35.145834] The buggy address belongs to the physical page: [ 35.146651] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106af7 [ 35.147892] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 35.148799] page_type: f5(slab) [ 35.149337] raw: 0bfffe0000000000 fff00000c408c3c0 dead000000000122 0000000000000000 [ 35.150529] raw: 0000000000000000 00000000800f000f 00000001f5000000 0000000000000000 [ 35.151572] page dumped because: kasan: bad access detected [ 35.152278] [ 35.152650] Memory state around the buggy address: [ 35.153281] fff00000c6af6f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.154101] fff00000c6af6f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.155509] >fff00000c6af7000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.156848] ^ [ 35.157636] fff00000c6af7080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 35.158767] fff00000c6af7100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.159895] ==================================================================
[ 26.254868] ================================================================== [ 26.255724] BUG: KASAN: double-free in kmem_cache_double_free+0x1e6/0x490 [ 26.256474] Free of addr ffff888102a14000 by task kunit_try_catch/217 [ 26.256956] [ 26.257195] CPU: 1 UID: 0 PID: 217 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241122 #1 [ 26.258056] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.258652] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.260573] Call Trace: [ 26.261088] <TASK> [ 26.261497] dump_stack_lvl+0x73/0xb0 [ 26.262108] print_report+0xd1/0x640 [ 26.262701] ? __virt_addr_valid+0x1db/0x2d0 [ 26.263486] ? kmem_cache_double_free+0x1e6/0x490 [ 26.264043] ? kasan_complete_mode_report_info+0x64/0x200 [ 26.264816] ? kmem_cache_double_free+0x1e6/0x490 [ 26.265495] kasan_report_invalid_free+0xc0/0xf0 [ 26.266210] ? kmem_cache_double_free+0x1e6/0x490 [ 26.266796] ? kmem_cache_double_free+0x1e6/0x490 [ 26.267913] check_slab_allocation+0x101/0x130 [ 26.268408] __kasan_slab_pre_free+0x28/0x40 [ 26.268776] kmem_cache_free+0xee/0x420 [ 26.269586] ? kmem_cache_alloc_noprof+0x11e/0x3f0 [ 26.270294] ? kmem_cache_double_free+0x1e6/0x490 [ 26.270720] kmem_cache_double_free+0x1e6/0x490 [ 26.271633] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 26.272183] ? finish_task_switch.isra.0+0x153/0x700 [ 26.272743] ? __switch_to+0x5d9/0xf60 [ 26.273443] ? __pfx_read_tsc+0x10/0x10 [ 26.274107] ? ktime_get_ts64+0x84/0x230 [ 26.274539] kunit_try_run_case+0x1b3/0x490 [ 26.275459] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.275784] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.276620] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.277394] ? __kthread_parkme+0x82/0x160 [ 26.278055] ? preempt_count_sub+0x50/0x80 [ 26.278546] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.279388] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.280390] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.281237] kthread+0x257/0x310 [ 26.281753] ? __pfx_kthread+0x10/0x10 [ 26.282370] ret_from_fork+0x41/0x80 [ 26.282787] ? __pfx_kthread+0x10/0x10 [ 26.283918] ret_from_fork_asm+0x1a/0x30 [ 26.284226] </TASK> [ 26.284977] [ 26.285208] Allocated by task 217: [ 26.285675] kasan_save_stack+0x3d/0x60 [ 26.286437] kasan_save_track+0x18/0x40 [ 26.286736] kasan_save_alloc_info+0x3b/0x50 [ 26.287734] __kasan_slab_alloc+0x91/0xa0 [ 26.288323] kmem_cache_alloc_noprof+0x11e/0x3f0 [ 26.289003] kmem_cache_double_free+0x150/0x490 [ 26.289587] kunit_try_run_case+0x1b3/0x490 [ 26.290187] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.290810] kthread+0x257/0x310 [ 26.291593] ret_from_fork+0x41/0x80 [ 26.291939] ret_from_fork_asm+0x1a/0x30 [ 26.292621] [ 26.292858] Freed by task 217: [ 26.293314] kasan_save_stack+0x3d/0x60 [ 26.294013] kasan_save_track+0x18/0x40 [ 26.294443] kasan_save_free_info+0x3f/0x60 [ 26.294806] __kasan_slab_free+0x56/0x70 [ 26.295760] kmem_cache_free+0x120/0x420 [ 26.296435] kmem_cache_double_free+0x16b/0x490 [ 26.297014] kunit_try_run_case+0x1b3/0x490 [ 26.297571] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.298100] kthread+0x257/0x310 [ 26.298562] ret_from_fork+0x41/0x80 [ 26.299416] ret_from_fork_asm+0x1a/0x30 [ 26.299851] [ 26.300283] The buggy address belongs to the object at ffff888102a14000 [ 26.300283] which belongs to the cache test_cache of size 200 [ 26.301402] The buggy address is located 0 bytes inside of [ 26.301402] 200-byte region [ffff888102a14000, ffff888102a140c8) [ 26.302354] [ 26.302514] The buggy address belongs to the physical page: [ 26.303023] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a14 [ 26.303593] flags: 0x200000000000000(node=0|zone=2) [ 26.304447] page_type: f5(slab) [ 26.304691] raw: 0200000000000000 ffff888102a0e140 dead000000000122 0000000000000000 [ 26.305475] raw: 0000000000000000 00000000800f000f 00000001f5000000 0000000000000000 [ 26.306497] page dumped because: kasan: bad access detected [ 26.307219] [ 26.307470] Memory state around the buggy address: [ 26.308374] ffff888102a13f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.308792] ffff888102a13f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.309438] >ffff888102a14000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.310370] ^ [ 26.310811] ffff888102a14080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 26.311624] ffff888102a14100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.312770] ==================================================================