Date
Dec. 5, 2024, 2:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.662329] ================================================================== [ 30.663212] BUG: KASAN: double-free in kfree_sensitive+0x3c/0xb0 [ 30.664597] Free of addr fff00000c61b4340 by task kunit_try_catch/181 [ 30.665476] [ 30.665936] CPU: 0 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241205 #1 [ 30.667104] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.667638] Hardware name: linux,dummy-virt (DT) [ 30.670550] Call trace: [ 30.670975] show_stack+0x20/0x38 (C) [ 30.671892] dump_stack_lvl+0x8c/0xd0 [ 30.672473] print_report+0x118/0x5e0 [ 30.673063] kasan_report_invalid_free+0xb0/0xd8 [ 30.673708] check_slab_allocation+0xd4/0x108 [ 30.674431] __kasan_slab_pre_free+0x2c/0x48 [ 30.675055] kfree+0xe8/0x3c8 [ 30.675780] kfree_sensitive+0x3c/0xb0 [ 30.676352] kmalloc_double_kzfree+0x168/0x308 [ 30.676973] kunit_try_run_case+0x14c/0x3d0 [ 30.677672] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.678486] kthread+0x24c/0x2d0 [ 30.678961] ret_from_fork+0x10/0x20 [ 30.679836] [ 30.680361] Allocated by task 181: [ 30.680754] kasan_save_stack+0x3c/0x68 [ 30.681321] kasan_save_track+0x20/0x40 [ 30.681839] kasan_save_alloc_info+0x40/0x58 [ 30.682607] __kasan_kmalloc+0xd4/0xd8 [ 30.683119] __kmalloc_cache_noprof+0x15c/0x3c0 [ 30.684282] kmalloc_double_kzfree+0xb8/0x308 [ 30.684598] kunit_try_run_case+0x14c/0x3d0 [ 30.684927] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.685681] kthread+0x24c/0x2d0 [ 30.686437] ret_from_fork+0x10/0x20 [ 30.686982] [ 30.687644] Freed by task 181: [ 30.688281] kasan_save_stack+0x3c/0x68 [ 30.688992] kasan_save_track+0x20/0x40 [ 30.689724] kasan_save_free_info+0x4c/0x78 [ 30.690501] __kasan_slab_free+0x6c/0x98 [ 30.691512] kfree+0x114/0x3c8 [ 30.692002] kfree_sensitive+0x80/0xb0 [ 30.692703] kmalloc_double_kzfree+0x11c/0x308 [ 30.693436] kunit_try_run_case+0x14c/0x3d0 [ 30.693971] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.694771] kthread+0x24c/0x2d0 [ 30.695605] ret_from_fork+0x10/0x20 [ 30.696196] [ 30.696533] The buggy address belongs to the object at fff00000c61b4340 [ 30.696533] which belongs to the cache kmalloc-16 of size 16 [ 30.697951] The buggy address is located 0 bytes inside of [ 30.697951] 16-byte region [fff00000c61b4340, fff00000c61b4350) [ 30.699515] [ 30.699920] The buggy address belongs to the physical page: [ 30.700633] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1061b4 [ 30.701603] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.702387] page_type: f5(slab) [ 30.702841] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 30.704310] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 30.705198] page dumped because: kasan: bad access detected [ 30.705811] [ 30.706527] Memory state around the buggy address: [ 30.707140] fff00000c61b4200: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 30.708171] fff00000c61b4280: 00 04 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 30.709026] >fff00000c61b4300: fa fb fc fc fa fb fc fc fa fb fc fc fc fc fc fc [ 30.709797] ^ [ 30.710449] fff00000c61b4380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.711467] fff00000c61b4400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.712275] ==================================================================
[ 28.480198] ================================================================== [ 28.480792] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90 [ 28.481343] Free of addr ffff8881025ed7c0 by task kunit_try_catch/199 [ 28.483511] [ 28.483725] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241205 #1 [ 28.485210] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.485510] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 28.486713] Call Trace: [ 28.486944] <TASK> [ 28.487235] dump_stack_lvl+0x73/0xb0 [ 28.487590] print_report+0xd1/0x640 [ 28.488046] ? __virt_addr_valid+0x1db/0x2d0 [ 28.488581] ? kfree_sensitive+0x2e/0x90 [ 28.489187] ? kasan_complete_mode_report_info+0x64/0x200 [ 28.489875] ? kfree_sensitive+0x2e/0x90 [ 28.490258] kasan_report_invalid_free+0xc0/0xf0 [ 28.491721] ? kfree_sensitive+0x2e/0x90 [ 28.492069] ? kfree_sensitive+0x2e/0x90 [ 28.492891] check_slab_allocation+0x101/0x130 [ 28.493600] __kasan_slab_pre_free+0x28/0x40 [ 28.494264] kfree+0xf1/0x3f0 [ 28.494674] ? kfree_sensitive+0x2e/0x90 [ 28.495146] kfree_sensitive+0x2e/0x90 [ 28.496274] kmalloc_double_kzfree+0x19d/0x360 [ 28.497437] ? __pfx_kmalloc_double_kzfree+0x10/0x10 [ 28.498543] ? __schedule+0xc70/0x27e0 [ 28.499495] ? __pfx_read_tsc+0x10/0x10 [ 28.500036] ? ktime_get_ts64+0x86/0x230 [ 28.500464] kunit_try_run_case+0x1b3/0x490 [ 28.501702] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.502273] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 28.502780] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 28.504068] ? __kthread_parkme+0x82/0x160 [ 28.504738] ? preempt_count_sub+0x50/0x80 [ 28.505479] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.506153] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 28.506751] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.507962] kthread+0x257/0x310 [ 28.508462] ? __pfx_kthread+0x10/0x10 [ 28.508980] ret_from_fork+0x41/0x80 [ 28.509813] ? __pfx_kthread+0x10/0x10 [ 28.510575] ret_from_fork_asm+0x1a/0x30 [ 28.511025] </TASK> [ 28.511582] [ 28.512033] Allocated by task 199: [ 28.512723] kasan_save_stack+0x3d/0x60 [ 28.513243] kasan_save_track+0x18/0x40 [ 28.514014] kasan_save_alloc_info+0x3b/0x50 [ 28.515070] __kasan_kmalloc+0xb7/0xc0 [ 28.515581] __kmalloc_cache_noprof+0x184/0x410 [ 28.516609] kmalloc_double_kzfree+0xaa/0x360 [ 28.517392] kunit_try_run_case+0x1b3/0x490 [ 28.517955] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.518708] kthread+0x257/0x310 [ 28.519196] ret_from_fork+0x41/0x80 [ 28.519642] ret_from_fork_asm+0x1a/0x30 [ 28.520431] [ 28.520907] Freed by task 199: [ 28.521747] kasan_save_stack+0x3d/0x60 [ 28.522130] kasan_save_track+0x18/0x40 [ 28.522615] kasan_save_free_info+0x3f/0x60 [ 28.523505] __kasan_slab_free+0x56/0x70 [ 28.524452] kfree+0x123/0x3f0 [ 28.525230] kfree_sensitive+0x67/0x90 [ 28.525624] kmalloc_double_kzfree+0x12c/0x360 [ 28.526492] kunit_try_run_case+0x1b3/0x490 [ 28.527221] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.527720] kthread+0x257/0x310 [ 28.528573] ret_from_fork+0x41/0x80 [ 28.529255] ret_from_fork_asm+0x1a/0x30 [ 28.529833] [ 28.530242] The buggy address belongs to the object at ffff8881025ed7c0 [ 28.530242] which belongs to the cache kmalloc-16 of size 16 [ 28.531892] The buggy address is located 0 bytes inside of [ 28.531892] 16-byte region [ffff8881025ed7c0, ffff8881025ed7d0) [ 28.532555] [ 28.532661] The buggy address belongs to the physical page: [ 28.533303] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1025ed [ 28.534371] flags: 0x200000000000000(node=0|zone=2) [ 28.535166] page_type: f5(slab) [ 28.535494] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 28.536158] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 28.536855] page dumped because: kasan: bad access detected [ 28.537457] [ 28.537715] Memory state around the buggy address: [ 28.538345] ffff8881025ed680: 00 05 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc [ 28.539165] ffff8881025ed700: 00 02 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 28.540173] >ffff8881025ed780: fa fb fc fc fa fb fc fc fa fb fc fc fc fc fc fc [ 28.540955] ^ [ 28.541523] ffff8881025ed800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.542305] ffff8881025ed880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.543130] ==================================================================