Date
Nov. 28, 2024, 2:36 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.104338] ================================================================== [ 31.105217] BUG: KASAN: double-free in kfree_sensitive+0x3c/0xb0 [ 31.105948] Free of addr fff00000c5d76c80 by task kunit_try_catch/180 [ 31.106561] [ 31.106931] CPU: 0 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241128 #1 [ 31.108256] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.108818] Hardware name: linux,dummy-virt (DT) [ 31.109610] Call trace: [ 31.110030] show_stack+0x20/0x38 (C) [ 31.110561] dump_stack_lvl+0x8c/0xd0 [ 31.111193] print_report+0x118/0x5e0 [ 31.111684] kasan_report_invalid_free+0xb0/0xd8 [ 31.112382] check_slab_allocation+0xd4/0x108 [ 31.113200] __kasan_slab_pre_free+0x2c/0x48 [ 31.113842] kfree+0xe8/0x3c8 [ 31.114387] kfree_sensitive+0x3c/0xb0 [ 31.114982] kmalloc_double_kzfree+0x168/0x308 [ 31.115645] kunit_try_run_case+0x14c/0x3d0 [ 31.116271] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.117274] kthread+0x24c/0x2d0 [ 31.117772] ret_from_fork+0x10/0x20 [ 31.118330] [ 31.118641] Allocated by task 180: [ 31.119164] kasan_save_stack+0x3c/0x68 [ 31.119670] kasan_save_track+0x20/0x40 [ 31.120251] kasan_save_alloc_info+0x40/0x58 [ 31.120748] __kasan_kmalloc+0xd4/0xd8 [ 31.122194] __kmalloc_cache_noprof+0x15c/0x3c0 [ 31.123218] kmalloc_double_kzfree+0xb8/0x308 [ 31.123962] kunit_try_run_case+0x14c/0x3d0 [ 31.124538] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.125658] kthread+0x24c/0x2d0 [ 31.125909] ret_from_fork+0x10/0x20 [ 31.126181] [ 31.126461] Freed by task 180: [ 31.126955] kasan_save_stack+0x3c/0x68 [ 31.127589] kasan_save_track+0x20/0x40 [ 31.128050] kasan_save_free_info+0x4c/0x78 [ 31.128728] __kasan_slab_free+0x6c/0x98 [ 31.129570] kfree+0x114/0x3c8 [ 31.130085] kfree_sensitive+0x80/0xb0 [ 31.130597] kmalloc_double_kzfree+0x11c/0x308 [ 31.131380] kunit_try_run_case+0x14c/0x3d0 [ 31.132027] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.132682] kthread+0x24c/0x2d0 [ 31.133467] ret_from_fork+0x10/0x20 [ 31.134042] [ 31.134435] The buggy address belongs to the object at fff00000c5d76c80 [ 31.134435] which belongs to the cache kmalloc-16 of size 16 [ 31.135661] The buggy address is located 0 bytes inside of [ 31.135661] 16-byte region [fff00000c5d76c80, fff00000c5d76c90) [ 31.136790] [ 31.137223] The buggy address belongs to the physical page: [ 31.138212] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105d76 [ 31.139145] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.139925] page_type: f5(slab) [ 31.140461] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 31.141597] raw: 0000000000000000 0000000080800080 00000001f5000000 0000000000000000 [ 31.142334] page dumped because: kasan: bad access detected [ 31.142893] [ 31.143289] Memory state around the buggy address: [ 31.143907] fff00000c5d76b80: fa fb fc fc 00 02 fc fc fa fb fc fc fa fb fc fc [ 31.144803] fff00000c5d76c00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 31.145854] >fff00000c5d76c80: fa fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.146723] ^ [ 31.147424] fff00000c5d76d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.148382] fff00000c5d76d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.149547] ==================================================================
[ 22.033309] ================================================================== [ 22.034129] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90 [ 22.035373] Free of addr ffff888101094f80 by task kunit_try_catch/200 [ 22.035860] [ 22.036047] CPU: 1 UID: 0 PID: 200 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241128 #1 [ 22.037429] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.037712] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.038322] Call Trace: [ 22.038674] <TASK> [ 22.038887] dump_stack_lvl+0x73/0xb0 [ 22.039428] print_report+0xd1/0x640 [ 22.039741] ? __virt_addr_valid+0x1db/0x2d0 [ 22.040712] ? kfree_sensitive+0x2e/0x90 [ 22.041302] ? kasan_complete_mode_report_info+0x64/0x200 [ 22.041740] ? kfree_sensitive+0x2e/0x90 [ 22.042363] kasan_report_invalid_free+0xc0/0xf0 [ 22.042815] ? kfree_sensitive+0x2e/0x90 [ 22.043528] ? kfree_sensitive+0x2e/0x90 [ 22.043867] check_slab_allocation+0x101/0x130 [ 22.044741] __kasan_slab_pre_free+0x28/0x40 [ 22.045058] kfree+0xf1/0x3f0 [ 22.045521] ? kfree_sensitive+0x2e/0x90 [ 22.045888] kfree_sensitive+0x2e/0x90 [ 22.046482] kmalloc_double_kzfree+0x19d/0x360 [ 22.046982] ? __pfx_kmalloc_double_kzfree+0x10/0x10 [ 22.047741] ? __schedule+0xc3e/0x2790 [ 22.048027] ? __pfx_read_tsc+0x10/0x10 [ 22.048820] ? ktime_get_ts64+0x84/0x230 [ 22.049481] kunit_try_run_case+0x1b3/0x490 [ 22.049934] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.050485] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 22.050821] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.051549] ? __kthread_parkme+0x82/0x160 [ 22.051899] ? preempt_count_sub+0x50/0x80 [ 22.052396] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.052928] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.053325] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.053911] kthread+0x257/0x310 [ 22.054295] ? __pfx_kthread+0x10/0x10 [ 22.054873] ret_from_fork+0x41/0x80 [ 22.055561] ? __pfx_kthread+0x10/0x10 [ 22.055975] ret_from_fork_asm+0x1a/0x30 [ 22.056584] </TASK> [ 22.056796] [ 22.056950] Allocated by task 200: [ 22.057477] kasan_save_stack+0x3d/0x60 [ 22.057884] kasan_save_track+0x18/0x40 [ 22.058581] kasan_save_alloc_info+0x3b/0x50 [ 22.059018] __kasan_kmalloc+0xb7/0xc0 [ 22.059562] __kmalloc_cache_noprof+0x184/0x410 [ 22.060062] kmalloc_double_kzfree+0xaa/0x360 [ 22.060567] kunit_try_run_case+0x1b3/0x490 [ 22.060881] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.061661] kthread+0x257/0x310 [ 22.062035] ret_from_fork+0x41/0x80 [ 22.062848] ret_from_fork_asm+0x1a/0x30 [ 22.063233] [ 22.063578] Freed by task 200: [ 22.063969] kasan_save_stack+0x3d/0x60 [ 22.064584] kasan_save_track+0x18/0x40 [ 22.064926] kasan_save_free_info+0x3f/0x60 [ 22.065566] __kasan_slab_free+0x56/0x70 [ 22.065911] kfree+0x123/0x3f0 [ 22.066214] kfree_sensitive+0x67/0x90 [ 22.066676] kmalloc_double_kzfree+0x12c/0x360 [ 22.067015] kunit_try_run_case+0x1b3/0x490 [ 22.067928] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.068658] kthread+0x257/0x310 [ 22.068907] ret_from_fork+0x41/0x80 [ 22.069512] ret_from_fork_asm+0x1a/0x30 [ 22.069996] [ 22.070454] The buggy address belongs to the object at ffff888101094f80 [ 22.070454] which belongs to the cache kmalloc-16 of size 16 [ 22.071874] The buggy address is located 0 bytes inside of [ 22.071874] 16-byte region [ffff888101094f80, ffff888101094f90) [ 22.072838] [ 22.073090] The buggy address belongs to the physical page: [ 22.073861] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101094 [ 22.074538] flags: 0x200000000000000(node=0|zone=2) [ 22.074919] page_type: f5(slab) [ 22.075331] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 22.076026] raw: 0000000000000000 0000000080800080 00000001f5000000 0000000000000000 [ 22.076985] page dumped because: kasan: bad access detected [ 22.077683] [ 22.077942] Memory state around the buggy address: [ 22.078517] ffff888101094e80: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 22.079319] ffff888101094f00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 22.079914] >ffff888101094f80: fa fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.080875] ^ [ 22.081116] ffff888101095000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.081908] ffff888101095080: 00 fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 [ 22.082656] ==================================================================