Date
Nov. 27, 2024, 3:37 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 48.423115] ================================================================== [ 48.423791] BUG: KASAN: double-free in kfree_sensitive+0x3c/0xb0 [ 48.424655] Free of addr fff00000c5f55300 by task kunit_try_catch/181 [ 48.425447] [ 48.425827] CPU: 0 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241127 #1 [ 48.426944] Tainted: [B]=BAD_PAGE, [N]=TEST [ 48.427562] Hardware name: linux,dummy-virt (DT) [ 48.428443] Call trace: [ 48.428824] show_stack+0x20/0x38 (C) [ 48.429506] dump_stack_lvl+0x8c/0xd0 [ 48.430089] print_report+0x118/0x5e0 [ 48.431144] kasan_report_invalid_free+0xb0/0xd8 [ 48.431795] check_slab_allocation+0xd4/0x108 [ 48.432461] __kasan_slab_pre_free+0x2c/0x48 [ 48.433566] kfree+0xe8/0x3c8 [ 48.434197] kfree_sensitive+0x3c/0xb0 [ 48.434752] kmalloc_double_kzfree+0x168/0x308 [ 48.435664] kunit_try_run_case+0x14c/0x3d0 [ 48.436125] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.437099] kthread+0x24c/0x2d0 [ 48.437675] ret_from_fork+0x10/0x20 [ 48.438240] [ 48.438635] Allocated by task 181: [ 48.439199] kasan_save_stack+0x3c/0x68 [ 48.439787] kasan_save_track+0x20/0x40 [ 48.440357] kasan_save_alloc_info+0x40/0x58 [ 48.441284] __kasan_kmalloc+0xd4/0xd8 [ 48.441844] __kmalloc_cache_noprof+0x15c/0x3c0 [ 48.442482] kmalloc_double_kzfree+0xb8/0x308 [ 48.443044] kunit_try_run_case+0x14c/0x3d0 [ 48.444373] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.445563] kthread+0x24c/0x2d0 [ 48.446000] ret_from_fork+0x10/0x20 [ 48.446494] [ 48.446852] Freed by task 181: [ 48.447263] kasan_save_stack+0x3c/0x68 [ 48.447991] kasan_save_track+0x20/0x40 [ 48.448542] kasan_save_free_info+0x4c/0x78 [ 48.449205] __kasan_slab_free+0x6c/0x98 [ 48.449880] kfree+0x114/0x3c8 [ 48.450442] kfree_sensitive+0x80/0xb0 [ 48.451066] kmalloc_double_kzfree+0x11c/0x308 [ 48.452670] kunit_try_run_case+0x14c/0x3d0 [ 48.453006] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.454363] kthread+0x24c/0x2d0 [ 48.454792] ret_from_fork+0x10/0x20 [ 48.455540] [ 48.455948] The buggy address belongs to the object at fff00000c5f55300 [ 48.455948] which belongs to the cache kmalloc-16 of size 16 [ 48.457634] The buggy address is located 0 bytes inside of [ 48.457634] 16-byte region [fff00000c5f55300, fff00000c5f55310) [ 48.459352] [ 48.459799] The buggy address belongs to the physical page: [ 48.460750] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105f55 [ 48.461958] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 48.462749] page_type: f5(slab) [ 48.463390] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 48.464377] raw: 0000000000000000 0000000080800080 00000001f5000000 0000000000000000 [ 48.465380] page dumped because: kasan: bad access detected [ 48.466729] [ 48.467281] Memory state around the buggy address: [ 48.467966] fff00000c5f55200: 00 05 fc fc fa fb fc fc 00 02 fc fc fa fb fc fc [ 48.468908] fff00000c5f55280: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 48.470196] >fff00000c5f55300: fa fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.471125] ^ [ 48.471637] fff00000c5f55380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.472816] fff00000c5f55400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.473769] ==================================================================
[ 25.656472] ================================================================== [ 25.657074] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90 [ 25.657762] Free of addr ffff888102699d60 by task kunit_try_catch/200 [ 25.658451] [ 25.658790] CPU: 0 UID: 0 PID: 200 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241127 #1 [ 25.660201] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.661169] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.662294] Call Trace: [ 25.662529] <TASK> [ 25.662829] dump_stack_lvl+0x73/0xb0 [ 25.663621] print_report+0xd1/0x640 [ 25.664255] ? __virt_addr_valid+0x1db/0x2d0 [ 25.664691] ? kfree_sensitive+0x2e/0x90 [ 25.665257] ? kasan_complete_mode_report_info+0x64/0x200 [ 25.665772] ? kfree_sensitive+0x2e/0x90 [ 25.666179] kasan_report_invalid_free+0xc0/0xf0 [ 25.666762] ? kfree_sensitive+0x2e/0x90 [ 25.667580] ? kfree_sensitive+0x2e/0x90 [ 25.668131] check_slab_allocation+0x101/0x130 [ 25.668853] __kasan_slab_pre_free+0x28/0x40 [ 25.669551] kfree+0xf1/0x3f0 [ 25.669810] ? kfree_sensitive+0x2e/0x90 [ 25.670459] kfree_sensitive+0x2e/0x90 [ 25.670883] kmalloc_double_kzfree+0x19d/0x360 [ 25.671662] ? __pfx_kmalloc_double_kzfree+0x10/0x10 [ 25.672181] ? __schedule+0xc3e/0x2790 [ 25.672950] ? __pfx_read_tsc+0x10/0x10 [ 25.673546] ? ktime_get_ts64+0x84/0x230 [ 25.674091] kunit_try_run_case+0x1b3/0x490 [ 25.674721] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.675559] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 25.676119] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.676740] ? __kthread_parkme+0x82/0x160 [ 25.677156] ? preempt_count_sub+0x50/0x80 [ 25.677770] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.678388] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.678909] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.679603] kthread+0x257/0x310 [ 25.679959] ? __pfx_kthread+0x10/0x10 [ 25.680864] ret_from_fork+0x41/0x80 [ 25.681511] ? __pfx_kthread+0x10/0x10 [ 25.681913] ret_from_fork_asm+0x1a/0x30 [ 25.682601] </TASK> [ 25.683061] [ 25.683315] Allocated by task 200: [ 25.683899] kasan_save_stack+0x3d/0x60 [ 25.684832] kasan_save_track+0x18/0x40 [ 25.685430] kasan_save_alloc_info+0x3b/0x50 [ 25.685868] __kasan_kmalloc+0xb7/0xc0 [ 25.686584] __kmalloc_cache_noprof+0x184/0x410 [ 25.686950] kmalloc_double_kzfree+0xaa/0x360 [ 25.687689] kunit_try_run_case+0x1b3/0x490 [ 25.688476] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.689324] kthread+0x257/0x310 [ 25.689709] ret_from_fork+0x41/0x80 [ 25.690277] ret_from_fork_asm+0x1a/0x30 [ 25.690649] [ 25.691055] Freed by task 200: [ 25.691442] kasan_save_stack+0x3d/0x60 [ 25.692228] kasan_save_track+0x18/0x40 [ 25.692750] kasan_save_free_info+0x3f/0x60 [ 25.693424] __kasan_slab_free+0x56/0x70 [ 25.694142] kfree+0x123/0x3f0 [ 25.694514] kfree_sensitive+0x67/0x90 [ 25.695062] kmalloc_double_kzfree+0x12c/0x360 [ 25.695570] kunit_try_run_case+0x1b3/0x490 [ 25.696458] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.697091] kthread+0x257/0x310 [ 25.697387] ret_from_fork+0x41/0x80 [ 25.697816] ret_from_fork_asm+0x1a/0x30 [ 25.698575] [ 25.698859] The buggy address belongs to the object at ffff888102699d60 [ 25.698859] which belongs to the cache kmalloc-16 of size 16 [ 25.699863] The buggy address is located 0 bytes inside of [ 25.699863] 16-byte region [ffff888102699d60, ffff888102699d70) [ 25.700889] [ 25.701460] The buggy address belongs to the physical page: [ 25.702325] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102699 [ 25.702969] flags: 0x200000000000000(node=0|zone=2) [ 25.703655] page_type: f5(slab) [ 25.703925] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 25.704664] raw: 0000000000000000 0000000080800080 00000001f5000000 0000000000000000 [ 25.705648] page dumped because: kasan: bad access detected [ 25.706408] [ 25.706576] Memory state around the buggy address: [ 25.706975] ffff888102699c00: 00 02 fc fc 00 02 fc fc 00 02 fc fc fa fb fc fc [ 25.707586] ffff888102699c80: fa fb fc fc fa fb fc fc 00 05 fc fc 00 04 fc fc [ 25.708473] >ffff888102699d00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 25.709241] ^ [ 25.709605] ffff888102699d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.710642] ffff888102699e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.711287] ==================================================================