Date
Nov. 22, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 34.332551] ================================================================== [ 34.333751] BUG: KASAN: double-free in kfree_sensitive+0x3c/0xb0 [ 34.334543] Free of addr fff00000c6105320 by task kunit_try_catch/181 [ 34.335307] [ 34.335893] CPU: 0 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241122 #1 [ 34.337876] Tainted: [B]=BAD_PAGE, [N]=TEST [ 34.338584] Hardware name: linux,dummy-virt (DT) [ 34.339360] Call trace: [ 34.339785] show_stack+0x20/0x38 (C) [ 34.340926] dump_stack_lvl+0x8c/0xd0 [ 34.341837] print_report+0x118/0x5e0 [ 34.343002] kasan_report_invalid_free+0xb0/0xd8 [ 34.343903] check_slab_allocation+0xd4/0x108 [ 34.344839] __kasan_slab_pre_free+0x2c/0x48 [ 34.345687] kfree+0xe8/0x3d0 [ 34.346894] kfree_sensitive+0x3c/0xb0 [ 34.347580] kmalloc_double_kzfree+0x168/0x308 [ 34.348366] kunit_try_run_case+0x14c/0x3d0 [ 34.349793] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.351848] kthread+0x24c/0x2d0 [ 34.353164] ret_from_fork+0x10/0x20 [ 34.353654] [ 34.354120] Allocated by task 181: [ 34.354560] kasan_save_stack+0x3c/0x68 [ 34.355424] kasan_save_track+0x20/0x40 [ 34.356098] kasan_save_alloc_info+0x40/0x58 [ 34.356766] __kasan_kmalloc+0xd4/0xd8 [ 34.357718] __kmalloc_cache_noprof+0x15c/0x3c8 [ 34.358738] kmalloc_double_kzfree+0xb8/0x308 [ 34.359221] kunit_try_run_case+0x14c/0x3d0 [ 34.360168] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.361712] kthread+0x24c/0x2d0 [ 34.362129] ret_from_fork+0x10/0x20 [ 34.363037] [ 34.363564] Freed by task 181: [ 34.364290] kasan_save_stack+0x3c/0x68 [ 34.365221] kasan_save_track+0x20/0x40 [ 34.366175] kasan_save_free_info+0x4c/0x78 [ 34.366694] __kasan_slab_free+0x6c/0x98 [ 34.367113] kfree+0x114/0x3d0 [ 34.368232] kfree_sensitive+0x80/0xb0 [ 34.369461] kmalloc_double_kzfree+0x11c/0x308 [ 34.371237] kunit_try_run_case+0x14c/0x3d0 [ 34.372617] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.373983] kthread+0x24c/0x2d0 [ 34.374886] ret_from_fork+0x10/0x20 [ 34.375820] [ 34.376297] The buggy address belongs to the object at fff00000c6105320 [ 34.376297] which belongs to the cache kmalloc-16 of size 16 [ 34.378937] The buggy address is located 0 bytes inside of [ 34.378937] 16-byte region [fff00000c6105320, fff00000c6105330) [ 34.381295] [ 34.382139] The buggy address belongs to the physical page: [ 34.383770] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106105 [ 34.385882] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 34.387193] page_type: f5(slab) [ 34.387963] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 34.390378] raw: 0000000000000000 0000000080800080 00000001f5000000 0000000000000000 [ 34.391339] page dumped because: kasan: bad access detected [ 34.393083] [ 34.393628] Memory state around the buggy address: [ 34.394255] fff00000c6105200: 00 06 fc fc 00 06 fc fc 00 00 fc fc fa fb fc fc [ 34.395285] fff00000c6105280: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 34.397414] >fff00000c6105300: fa fb fc fc fa fb fc fc fc fc fc fc fc fc fc fc [ 34.398717] ^ [ 34.399409] fff00000c6105380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 34.400378] fff00000c6105400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 34.401342] ==================================================================
[ 25.682454] ================================================================== [ 25.683753] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90 [ 25.684226] Free of addr ffff8881028346c0 by task kunit_try_catch/200 [ 25.685367] [ 25.685545] CPU: 1 UID: 0 PID: 200 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241122 #1 [ 25.687164] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.687510] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.688112] Call Trace: [ 25.688485] <TASK> [ 25.688743] dump_stack_lvl+0x73/0xb0 [ 25.689049] print_report+0xd1/0x640 [ 25.689275] ? __virt_addr_valid+0x1db/0x2d0 [ 25.690559] ? kfree_sensitive+0x2e/0x90 [ 25.691179] ? kasan_complete_mode_report_info+0x64/0x200 [ 25.691743] ? kfree_sensitive+0x2e/0x90 [ 25.692178] kasan_report_invalid_free+0xc0/0xf0 [ 25.692688] ? kfree_sensitive+0x2e/0x90 [ 25.693660] ? kfree_sensitive+0x2e/0x90 [ 25.694352] check_slab_allocation+0x101/0x130 [ 25.694752] __kasan_slab_pre_free+0x28/0x40 [ 25.695416] kfree+0xf1/0x3f0 [ 25.695765] ? kfree_sensitive+0x2e/0x90 [ 25.696358] kfree_sensitive+0x2e/0x90 [ 25.696923] kmalloc_double_kzfree+0x19d/0x360 [ 25.697288] ? __pfx_kmalloc_double_kzfree+0x10/0x10 [ 25.697975] ? __schedule+0xc3e/0x2790 [ 25.698423] ? __pfx_read_tsc+0x10/0x10 [ 25.698869] ? ktime_get_ts64+0x84/0x230 [ 25.699463] kunit_try_run_case+0x1b3/0x490 [ 25.700261] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.700952] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 25.701472] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.702518] ? __kthread_parkme+0x82/0x160 [ 25.703007] ? preempt_count_sub+0x50/0x80 [ 25.703296] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.703917] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.705282] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.705656] kthread+0x257/0x310 [ 25.706180] ? __pfx_kthread+0x10/0x10 [ 25.706610] ret_from_fork+0x41/0x80 [ 25.707209] ? __pfx_kthread+0x10/0x10 [ 25.707511] ret_from_fork_asm+0x1a/0x30 [ 25.708489] </TASK> [ 25.708804] [ 25.709061] Allocated by task 200: [ 25.709296] kasan_save_stack+0x3d/0x60 [ 25.709561] kasan_save_track+0x18/0x40 [ 25.710231] kasan_save_alloc_info+0x3b/0x50 [ 25.710890] __kasan_kmalloc+0xb7/0xc0 [ 25.711296] __kmalloc_cache_noprof+0x184/0x410 [ 25.711813] kmalloc_double_kzfree+0xaa/0x360 [ 25.712155] kunit_try_run_case+0x1b3/0x490 [ 25.713455] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.714248] kthread+0x257/0x310 [ 25.714495] ret_from_fork+0x41/0x80 [ 25.714847] ret_from_fork_asm+0x1a/0x30 [ 25.715467] [ 25.715725] Freed by task 200: [ 25.716269] kasan_save_stack+0x3d/0x60 [ 25.716651] kasan_save_track+0x18/0x40 [ 25.717016] kasan_save_free_info+0x3f/0x60 [ 25.717348] __kasan_slab_free+0x56/0x70 [ 25.718385] kfree+0x123/0x3f0 [ 25.718742] kfree_sensitive+0x67/0x90 [ 25.719164] kmalloc_double_kzfree+0x12c/0x360 [ 25.720009] kunit_try_run_case+0x1b3/0x490 [ 25.720523] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.721401] kthread+0x257/0x310 [ 25.721685] ret_from_fork+0x41/0x80 [ 25.722126] ret_from_fork_asm+0x1a/0x30 [ 25.722608] [ 25.722849] The buggy address belongs to the object at ffff8881028346c0 [ 25.722849] which belongs to the cache kmalloc-16 of size 16 [ 25.724159] The buggy address is located 0 bytes inside of [ 25.724159] 16-byte region [ffff8881028346c0, ffff8881028346d0) [ 25.725243] [ 25.725669] The buggy address belongs to the physical page: [ 25.726714] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102834 [ 25.728493] flags: 0x200000000000000(node=0|zone=2) [ 25.729723] page_type: f5(slab) [ 25.730139] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 25.730798] raw: 0000000000000000 0000000080800080 00000001f5000000 0000000000000000 [ 25.731314] page dumped because: kasan: bad access detected [ 25.731778] [ 25.731986] Memory state around the buggy address: [ 25.732425] ffff888102834580: 00 02 fc fc 00 02 fc fc 00 02 fc fc fa fb fc fc [ 25.733302] ffff888102834600: fa fb fc fc fa fb fc fc 00 05 fc fc fa fb fc fc [ 25.734086] >ffff888102834680: fa fb fc fc fa fb fc fc fa fb fc fc fc fc fc fc [ 25.734585] ^ [ 25.734942] ffff888102834700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.735681] ffff888102834780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.736216] ==================================================================