Date
Dec. 3, 2024, 11:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.040265] ================================================================== [ 31.041188] BUG: KASAN: double-free in kfree_sensitive+0x3c/0xb0 [ 31.042006] Free of addr fff00000c63183a0 by task kunit_try_catch/181 [ 31.042809] [ 31.043311] CPU: 0 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 31.044864] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.045558] Hardware name: linux,dummy-virt (DT) [ 31.046569] Call trace: [ 31.047240] show_stack+0x20/0x38 (C) [ 31.047791] dump_stack_lvl+0x8c/0xd0 [ 31.048318] print_report+0x118/0x5e0 [ 31.048979] kasan_report_invalid_free+0xb0/0xd8 [ 31.049753] check_slab_allocation+0xd4/0x108 [ 31.050416] __kasan_slab_pre_free+0x2c/0x48 [ 31.051370] kfree+0xe8/0x3c8 [ 31.051831] kfree_sensitive+0x3c/0xb0 [ 31.052493] kmalloc_double_kzfree+0x168/0x308 [ 31.053171] kunit_try_run_case+0x14c/0x3d0 [ 31.053838] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.054506] kthread+0x24c/0x2d0 [ 31.055572] ret_from_fork+0x10/0x20 [ 31.056205] [ 31.056529] Allocated by task 181: [ 31.057131] kasan_save_stack+0x3c/0x68 [ 31.057739] kasan_save_track+0x20/0x40 [ 31.058430] kasan_save_alloc_info+0x40/0x58 [ 31.059414] __kasan_kmalloc+0xd4/0xd8 [ 31.060429] __kmalloc_cache_noprof+0x15c/0x3c0 [ 31.061150] kmalloc_double_kzfree+0xb8/0x308 [ 31.061743] kunit_try_run_case+0x14c/0x3d0 [ 31.062379] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.063484] kthread+0x24c/0x2d0 [ 31.064029] ret_from_fork+0x10/0x20 [ 31.064849] [ 31.065133] Freed by task 181: [ 31.065846] kasan_save_stack+0x3c/0x68 [ 31.066651] kasan_save_track+0x20/0x40 [ 31.067604] kasan_save_free_info+0x4c/0x78 [ 31.068216] __kasan_slab_free+0x6c/0x98 [ 31.068692] kfree+0x114/0x3c8 [ 31.069471] kfree_sensitive+0x80/0xb0 [ 31.070089] kmalloc_double_kzfree+0x11c/0x308 [ 31.070792] kunit_try_run_case+0x14c/0x3d0 [ 31.071759] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.072444] kthread+0x24c/0x2d0 [ 31.073037] ret_from_fork+0x10/0x20 [ 31.073627] [ 31.074018] The buggy address belongs to the object at fff00000c63183a0 [ 31.074018] which belongs to the cache kmalloc-16 of size 16 [ 31.075841] The buggy address is located 0 bytes inside of [ 31.075841] 16-byte region [fff00000c63183a0, fff00000c63183b0) [ 31.077185] [ 31.077562] The buggy address belongs to the physical page: [ 31.078371] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106318 [ 31.079874] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.080742] page_type: f5(slab) [ 31.081195] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 31.082774] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 31.083678] page dumped because: kasan: bad access detected [ 31.084024] [ 31.084190] Memory state around the buggy address: [ 31.084827] fff00000c6318280: fa fb fc fc fa fb fc fc 00 02 fc fc 00 02 fc fc [ 31.085571] fff00000c6318300: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 31.086626] >fff00000c6318380: fa fb fc fc fa fb fc fc fc fc fc fc fc fc fc fc [ 31.087682] ^ [ 31.088388] fff00000c6318400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.089262] fff00000c6318480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.090482] ==================================================================
[ 26.569358] ================================================================== [ 26.570597] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90 [ 26.571402] Free of addr ffff888101adffc0 by task kunit_try_catch/201 [ 26.572109] [ 26.572795] CPU: 0 UID: 0 PID: 201 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 26.574044] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.574306] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.575583] Call Trace: [ 26.575878] <TASK> [ 26.576170] dump_stack_lvl+0x73/0xb0 [ 26.576801] print_report+0xd1/0x640 [ 26.577210] ? __virt_addr_valid+0x1db/0x2d0 [ 26.577684] ? kfree_sensitive+0x2e/0x90 [ 26.577994] ? kasan_complete_mode_report_info+0x64/0x200 [ 26.578415] ? kfree_sensitive+0x2e/0x90 [ 26.578998] kasan_report_invalid_free+0xc0/0xf0 [ 26.579527] ? kfree_sensitive+0x2e/0x90 [ 26.579940] ? kfree_sensitive+0x2e/0x90 [ 26.580413] check_slab_allocation+0x101/0x130 [ 26.580810] __kasan_slab_pre_free+0x28/0x40 [ 26.581110] kfree+0xf1/0x3f0 [ 26.581350] ? kfree_sensitive+0x2e/0x90 [ 26.581778] kfree_sensitive+0x2e/0x90 [ 26.582254] kmalloc_double_kzfree+0x19d/0x360 [ 26.582809] ? __pfx_kmalloc_double_kzfree+0x10/0x10 [ 26.583328] ? __schedule+0xc3e/0x2790 [ 26.583799] ? __pfx_read_tsc+0x10/0x10 [ 26.584246] ? ktime_get_ts64+0x86/0x230 [ 26.584803] kunit_try_run_case+0x1b3/0x490 [ 26.585182] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.585552] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.586082] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.586629] ? __kthread_parkme+0x82/0x160 [ 26.587076] ? preempt_count_sub+0x50/0x80 [ 26.587514] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.587969] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.588580] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.589130] kthread+0x257/0x310 [ 26.589434] ? __pfx_kthread+0x10/0x10 [ 26.589838] ret_from_fork+0x41/0x80 [ 26.590117] ? __pfx_kthread+0x10/0x10 [ 26.590373] ret_from_fork_asm+0x1a/0x30 [ 26.590827] </TASK> [ 26.591242] [ 26.591501] Allocated by task 201: [ 26.591872] kasan_save_stack+0x3d/0x60 [ 26.592348] kasan_save_track+0x18/0x40 [ 26.592888] kasan_save_alloc_info+0x3b/0x50 [ 26.593322] __kasan_kmalloc+0xb7/0xc0 [ 26.593722] __kmalloc_cache_noprof+0x184/0x410 [ 26.594172] kmalloc_double_kzfree+0xaa/0x360 [ 26.594450] kunit_try_run_case+0x1b3/0x490 [ 26.594913] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.595506] kthread+0x257/0x310 [ 26.595922] ret_from_fork+0x41/0x80 [ 26.596273] ret_from_fork_asm+0x1a/0x30 [ 26.596842] [ 26.597114] Freed by task 201: [ 26.597325] kasan_save_stack+0x3d/0x60 [ 26.597666] kasan_save_track+0x18/0x40 [ 26.598285] kasan_save_free_info+0x3f/0x60 [ 26.598831] __kasan_slab_free+0x56/0x70 [ 26.599208] kfree+0x123/0x3f0 [ 26.599717] kfree_sensitive+0x67/0x90 [ 26.600104] kmalloc_double_kzfree+0x12c/0x360 [ 26.600711] kunit_try_run_case+0x1b3/0x490 [ 26.600989] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.601317] kthread+0x257/0x310 [ 26.601540] ret_from_fork+0x41/0x80 [ 26.601775] ret_from_fork_asm+0x1a/0x30 [ 26.602028] [ 26.602248] The buggy address belongs to the object at ffff888101adffc0 [ 26.602248] which belongs to the cache kmalloc-16 of size 16 [ 26.603330] The buggy address is located 0 bytes inside of [ 26.603330] 16-byte region [ffff888101adffc0, ffff888101adffd0) [ 26.604565] [ 26.604748] The buggy address belongs to the physical page: [ 26.605247] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101adf [ 26.606275] flags: 0x200000000000000(node=0|zone=2) [ 26.606977] page_type: f5(slab) [ 26.607234] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 26.608072] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 26.608445] page dumped because: kasan: bad access detected [ 26.608729] [ 26.608868] Memory state around the buggy address: [ 26.609173] ffff888101adfe80: 00 05 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc [ 26.609993] ffff888101adff00: 00 02 fc fc fa fb fc fc 00 05 fc fc fa fb fc fc [ 26.610865] >ffff888101adff80: fa fb fc fc fa fb fc fc fa fb fc fc fc fc fc fc [ 26.611680] ^ [ 26.612189] ffff888101ae0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.613043] ffff888101ae0080: fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb [ 26.613629] ==================================================================