Date
Nov. 27, 2024, 3:37 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 49.043860] ================================================================== [ 49.045369] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 49.047393] Free of addr fff00000c617b000 by task kunit_try_catch/198 [ 49.048143] [ 49.048486] CPU: 1 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241127 #1 [ 49.049811] Tainted: [B]=BAD_PAGE, [N]=TEST [ 49.050369] Hardware name: linux,dummy-virt (DT) [ 49.051135] Call trace: [ 49.051617] show_stack+0x20/0x38 (C) [ 49.052167] dump_stack_lvl+0x8c/0xd0 [ 49.052744] print_report+0x118/0x5e0 [ 49.053481] kasan_report_invalid_free+0xb0/0xd8 [ 49.054822] check_slab_allocation+0xd4/0x108 [ 49.055446] __kasan_slab_pre_free+0x2c/0x48 [ 49.055981] kmem_cache_free+0xf0/0x470 [ 49.056622] kmem_cache_double_free+0x190/0x3c8 [ 49.058103] kunit_try_run_case+0x14c/0x3d0 [ 49.058770] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 49.059504] kthread+0x24c/0x2d0 [ 49.060139] ret_from_fork+0x10/0x20 [ 49.060678] [ 49.061037] Allocated by task 198: [ 49.061520] kasan_save_stack+0x3c/0x68 [ 49.062012] kasan_save_track+0x20/0x40 [ 49.063347] kasan_save_alloc_info+0x40/0x58 [ 49.063863] __kasan_slab_alloc+0xa8/0xb0 [ 49.065033] kmem_cache_alloc_noprof+0x108/0x398 [ 49.065521] kmem_cache_double_free+0x12c/0x3c8 [ 49.065940] kunit_try_run_case+0x14c/0x3d0 [ 49.067449] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 49.069640] kthread+0x24c/0x2d0 [ 49.070851] ret_from_fork+0x10/0x20 [ 49.072845] [ 49.073616] Freed by task 198: [ 49.073945] kasan_save_stack+0x3c/0x68 [ 49.075331] kasan_save_track+0x20/0x40 [ 49.075751] kasan_save_free_info+0x4c/0x78 [ 49.076163] __kasan_slab_free+0x6c/0x98 [ 49.076587] kmem_cache_free+0x118/0x470 [ 49.076983] kmem_cache_double_free+0x140/0x3c8 [ 49.079272] kunit_try_run_case+0x14c/0x3d0 [ 49.080820] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 49.082040] kthread+0x24c/0x2d0 [ 49.082833] ret_from_fork+0x10/0x20 [ 49.083230] [ 49.083952] The buggy address belongs to the object at fff00000c617b000 [ 49.083952] which belongs to the cache test_cache of size 200 [ 49.085832] The buggy address is located 0 bytes inside of [ 49.085832] 200-byte region [fff00000c617b000, fff00000c617b0c8) [ 49.087217] [ 49.087604] The buggy address belongs to the physical page: [ 49.088230] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10617b [ 49.089776] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 49.091126] page_type: f5(slab) [ 49.091667] raw: 0bfffe0000000000 fff00000c6181000 dead000000000122 0000000000000000 [ 49.092772] raw: 0000000000000000 00000000800f000f 00000001f5000000 0000000000000000 [ 49.093821] page dumped because: kasan: bad access detected [ 49.094155] [ 49.094353] Memory state around the buggy address: [ 49.095581] fff00000c617af00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 49.096671] fff00000c617af80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 49.097623] >fff00000c617b000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 49.099644] ^ [ 49.100230] fff00000c617b080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 49.101283] fff00000c617b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 49.102598] ==================================================================
[ 26.258694] ================================================================== [ 26.259687] BUG: KASAN: double-free in kmem_cache_double_free+0x1e6/0x490 [ 26.260750] Free of addr ffff888101aab000 by task kunit_try_catch/217 [ 26.261487] [ 26.261705] CPU: 1 UID: 0 PID: 217 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241127 #1 [ 26.263226] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.263670] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.264778] Call Trace: [ 26.265349] <TASK> [ 26.265655] dump_stack_lvl+0x73/0xb0 [ 26.266470] print_report+0xd1/0x640 [ 26.267087] ? __virt_addr_valid+0x1db/0x2d0 [ 26.267613] ? kmem_cache_double_free+0x1e6/0x490 [ 26.268321] ? kasan_complete_mode_report_info+0x64/0x200 [ 26.269066] ? kmem_cache_double_free+0x1e6/0x490 [ 26.269642] kasan_report_invalid_free+0xc0/0xf0 [ 26.270451] ? kmem_cache_double_free+0x1e6/0x490 [ 26.271104] ? kmem_cache_double_free+0x1e6/0x490 [ 26.271617] check_slab_allocation+0x101/0x130 [ 26.272314] __kasan_slab_pre_free+0x28/0x40 [ 26.272881] kmem_cache_free+0xee/0x420 [ 26.273405] ? kmem_cache_alloc_noprof+0x11e/0x3e0 [ 26.274051] ? kmem_cache_double_free+0x1e6/0x490 [ 26.274830] kmem_cache_double_free+0x1e6/0x490 [ 26.275516] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 26.276250] ? finish_task_switch.isra.0+0x153/0x700 [ 26.276703] ? __switch_to+0x5d9/0xf60 [ 26.277232] ? __pfx_read_tsc+0x10/0x10 [ 26.277586] ? ktime_get_ts64+0x84/0x230 [ 26.278006] kunit_try_run_case+0x1b3/0x490 [ 26.278438] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.278884] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.279543] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.279883] ? __kthread_parkme+0x82/0x160 [ 26.280671] ? preempt_count_sub+0x50/0x80 [ 26.281398] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.282065] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.282646] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.283493] kthread+0x257/0x310 [ 26.284103] ? __pfx_kthread+0x10/0x10 [ 26.284593] ret_from_fork+0x41/0x80 [ 26.285174] ? __pfx_kthread+0x10/0x10 [ 26.285655] ret_from_fork_asm+0x1a/0x30 [ 26.286296] </TASK> [ 26.286543] [ 26.286795] Allocated by task 217: [ 26.287593] kasan_save_stack+0x3d/0x60 [ 26.288257] kasan_save_track+0x18/0x40 [ 26.288728] kasan_save_alloc_info+0x3b/0x50 [ 26.289387] __kasan_slab_alloc+0x91/0xa0 [ 26.290101] kmem_cache_alloc_noprof+0x11e/0x3e0 [ 26.290611] kmem_cache_double_free+0x150/0x490 [ 26.291401] kunit_try_run_case+0x1b3/0x490 [ 26.291705] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.292563] kthread+0x257/0x310 [ 26.292821] ret_from_fork+0x41/0x80 [ 26.293482] ret_from_fork_asm+0x1a/0x30 [ 26.294167] [ 26.294410] Freed by task 217: [ 26.294836] kasan_save_stack+0x3d/0x60 [ 26.295452] kasan_save_track+0x18/0x40 [ 26.295875] kasan_save_free_info+0x3f/0x60 [ 26.296583] __kasan_slab_free+0x56/0x70 [ 26.297231] kmem_cache_free+0x120/0x420 [ 26.297744] kmem_cache_double_free+0x16b/0x490 [ 26.298417] kunit_try_run_case+0x1b3/0x490 [ 26.299214] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.299759] kthread+0x257/0x310 [ 26.300303] ret_from_fork+0x41/0x80 [ 26.300739] ret_from_fork_asm+0x1a/0x30 [ 26.301395] [ 26.301602] The buggy address belongs to the object at ffff888101aab000 [ 26.301602] which belongs to the cache test_cache of size 200 [ 26.302829] The buggy address is located 0 bytes inside of [ 26.302829] 200-byte region [ffff888101aab000, ffff888101aab0c8) [ 26.303784] [ 26.304333] The buggy address belongs to the physical page: [ 26.304870] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101aab [ 26.305587] flags: 0x200000000000000(node=0|zone=2) [ 26.306330] page_type: f5(slab) [ 26.306790] raw: 0200000000000000 ffff888101a548c0 dead000000000122 0000000000000000 [ 26.307665] raw: 0000000000000000 00000000800f000f 00000001f5000000 0000000000000000 [ 26.308698] page dumped because: kasan: bad access detected [ 26.309373] [ 26.309659] Memory state around the buggy address: [ 26.310366] ffff888101aaaf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.311225] ffff888101aaaf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.311840] >ffff888101aab000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.312826] ^ [ 26.313299] ffff888101aab080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 26.313933] ffff888101aab100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.314513] ==================================================================