Date
Nov. 20, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 37.863277] ================================================================== [ 37.863930] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 37.864293] Free of addr fff00000c652a000 by task kunit_try_catch/198 [ 37.864612] [ 37.864818] CPU: 0 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 37.867014] Tainted: [B]=BAD_PAGE, [N]=TEST [ 37.867495] Hardware name: linux,dummy-virt (DT) [ 37.868099] Call trace: [ 37.868544] show_stack+0x20/0x38 (C) [ 37.869102] dump_stack_lvl+0x8c/0xd0 [ 37.870694] print_report+0x118/0x5e0 [ 37.871431] kasan_report_invalid_free+0xb0/0xd8 [ 37.872001] check_slab_allocation+0xd4/0x108 [ 37.872573] __kasan_slab_pre_free+0x2c/0x48 [ 37.873204] kmem_cache_free+0xf0/0x470 [ 37.873752] kmem_cache_double_free+0x190/0x3c8 [ 37.874376] kunit_try_run_case+0x14c/0x3d0 [ 37.874893] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 37.876112] kthread+0x24c/0x2d0 [ 37.876572] ret_from_fork+0x10/0x20 [ 37.877070] [ 37.877395] Allocated by task 198: [ 37.877894] kasan_save_stack+0x3c/0x68 [ 37.878340] kasan_save_track+0x20/0x40 [ 37.879628] kasan_save_alloc_info+0x40/0x58 [ 37.880165] __kasan_slab_alloc+0xa8/0xb0 [ 37.880744] kmem_cache_alloc_noprof+0x108/0x3a0 [ 37.881401] kmem_cache_double_free+0x12c/0x3c8 [ 37.882370] kunit_try_run_case+0x14c/0x3d0 [ 37.883106] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 37.883911] kthread+0x24c/0x2d0 [ 37.884625] ret_from_fork+0x10/0x20 [ 37.885178] [ 37.885917] Freed by task 198: [ 37.886399] kasan_save_stack+0x3c/0x68 [ 37.886945] kasan_save_track+0x20/0x40 [ 37.887406] kasan_save_free_info+0x4c/0x78 [ 37.888014] __kasan_slab_free+0x6c/0x98 [ 37.888520] kmem_cache_free+0x118/0x470 [ 37.889103] kmem_cache_double_free+0x140/0x3c8 [ 37.889755] kunit_try_run_case+0x14c/0x3d0 [ 37.890571] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 37.891395] kthread+0x24c/0x2d0 [ 37.892403] ret_from_fork+0x10/0x20 [ 37.893045] [ 37.893712] The buggy address belongs to the object at fff00000c652a000 [ 37.893712] which belongs to the cache test_cache of size 200 [ 37.894861] The buggy address is located 0 bytes inside of [ 37.894861] 200-byte region [fff00000c652a000, fff00000c652a0c8) [ 37.895837] [ 37.896180] The buggy address belongs to the physical page: [ 37.896877] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10652a [ 37.898059] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 37.899021] page_type: f5(slab) [ 37.900108] raw: 0bfffe0000000000 fff00000c652d000 dead000000000122 0000000000000000 [ 37.901057] raw: 0000000000000000 00000000800f000f 00000001f5000000 0000000000000000 [ 37.901802] page dumped because: kasan: bad access detected [ 37.902891] [ 37.903256] Memory state around the buggy address: [ 37.903821] fff00000c6529f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 37.904578] fff00000c6529f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 37.905539] >fff00000c652a000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.906579] ^ [ 37.907263] fff00000c652a080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 37.908543] fff00000c652a100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 37.909610] ==================================================================
[ 29.424684] ================================================================== [ 29.425671] BUG: KASAN: double-free in kmem_cache_double_free+0x1e6/0x490 [ 29.426107] Free of addr ffff8881029ec000 by task kunit_try_catch/216 [ 29.426449] [ 29.426632] CPU: 1 UID: 0 PID: 216 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 29.427682] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.428172] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 29.428729] Call Trace: [ 29.428980] <TASK> [ 29.429997] dump_stack_lvl+0x73/0xb0 [ 29.430635] print_report+0xd1/0x640 [ 29.431325] ? __virt_addr_valid+0x1db/0x2d0 [ 29.432011] ? kmem_cache_double_free+0x1e6/0x490 [ 29.432578] ? kasan_complete_mode_report_info+0x64/0x200 [ 29.433561] ? kmem_cache_double_free+0x1e6/0x490 [ 29.434209] kasan_report_invalid_free+0xc0/0xf0 [ 29.434647] ? kmem_cache_double_free+0x1e6/0x490 [ 29.435207] ? kmem_cache_double_free+0x1e6/0x490 [ 29.435920] check_slab_allocation+0x101/0x130 [ 29.436539] __kasan_slab_pre_free+0x28/0x40 [ 29.436951] kmem_cache_free+0xee/0x420 [ 29.437922] ? kmem_cache_alloc_noprof+0x11e/0x3f0 [ 29.438568] ? kmem_cache_double_free+0x1e6/0x490 [ 29.439236] kmem_cache_double_free+0x1e6/0x490 [ 29.439740] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 29.440188] ? finish_task_switch.isra.0+0x153/0x700 [ 29.440705] ? __switch_to+0x5d9/0xf60 [ 29.441105] ? __pfx_read_tsc+0x10/0x10 [ 29.441581] ? ktime_get_ts64+0x84/0x230 [ 29.442243] kunit_try_run_case+0x1b3/0x490 [ 29.442833] ? __pfx_kunit_try_run_case+0x10/0x10 [ 29.443386] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 29.443939] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 29.444548] ? __kthread_parkme+0x82/0x160 [ 29.445051] ? preempt_count_sub+0x50/0x80 [ 29.445857] ? __pfx_kunit_try_run_case+0x10/0x10 [ 29.446491] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 29.447086] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 29.447569] kthread+0x257/0x310 [ 29.447875] ? __pfx_kthread+0x10/0x10 [ 29.448325] ret_from_fork+0x41/0x80 [ 29.448804] ? __pfx_kthread+0x10/0x10 [ 29.449086] ret_from_fork_asm+0x1a/0x30 [ 29.449926] </TASK> [ 29.450377] [ 29.450624] Allocated by task 216: [ 29.450939] kasan_save_stack+0x3d/0x60 [ 29.451541] kasan_save_track+0x18/0x40 [ 29.451985] kasan_save_alloc_info+0x3b/0x50 [ 29.452605] __kasan_slab_alloc+0x91/0xa0 [ 29.453081] kmem_cache_alloc_noprof+0x11e/0x3f0 [ 29.453952] kmem_cache_double_free+0x150/0x490 [ 29.454494] kunit_try_run_case+0x1b3/0x490 [ 29.454962] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 29.455642] kthread+0x257/0x310 [ 29.456006] ret_from_fork+0x41/0x80 [ 29.456643] ret_from_fork_asm+0x1a/0x30 [ 29.457525] [ 29.457846] Freed by task 216: [ 29.458373] kasan_save_stack+0x3d/0x60 [ 29.458667] kasan_save_track+0x18/0x40 [ 29.459346] kasan_save_free_info+0x3f/0x60 [ 29.459867] __kasan_slab_free+0x56/0x70 [ 29.460459] kmem_cache_free+0x120/0x420 [ 29.460998] kmem_cache_double_free+0x16b/0x490 [ 29.461937] kunit_try_run_case+0x1b3/0x490 [ 29.462465] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 29.463287] kthread+0x257/0x310 [ 29.463991] ret_from_fork+0x41/0x80 [ 29.464361] ret_from_fork_asm+0x1a/0x30 [ 29.464857] [ 29.465055] The buggy address belongs to the object at ffff8881029ec000 [ 29.465055] which belongs to the cache test_cache of size 200 [ 29.466487] The buggy address is located 0 bytes inside of [ 29.466487] 200-byte region [ffff8881029ec000, ffff8881029ec0c8) [ 29.467622] [ 29.467893] The buggy address belongs to the physical page: [ 29.468582] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029ec [ 29.469556] flags: 0x200000000000000(node=0|zone=2) [ 29.470309] page_type: f5(slab) [ 29.470544] raw: 0200000000000000 ffff888101ebc640 dead000000000122 0000000000000000 [ 29.471518] raw: 0000000000000000 00000000800f000f 00000001f5000000 0000000000000000 [ 29.472618] page dumped because: kasan: bad access detected [ 29.473237] [ 29.473488] Memory state around the buggy address: [ 29.474016] ffff8881029ebf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.475007] ffff8881029ebf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.475433] >ffff8881029ec000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.476092] ^ [ 29.477142] ffff8881029ec080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 29.477958] ffff8881029ec100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.478799] ==================================================================