Date
Nov. 20, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 39.872415] ================================================================== [ 39.873201] BUG: KASAN: slab-use-after-free in strlen+0xa8/0xb0 [ 39.873935] Read of size 1 at addr fff00000c65a90d0 by task kunit_try_catch/248 [ 39.874626] [ 39.874959] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 39.876020] Tainted: [B]=BAD_PAGE, [N]=TEST [ 39.876493] Hardware name: linux,dummy-virt (DT) [ 39.877106] Call trace: [ 39.877491] show_stack+0x20/0x38 (C) [ 39.878087] dump_stack_lvl+0x8c/0xd0 [ 39.878678] print_report+0x118/0x5e0 [ 39.879295] kasan_report+0xc8/0x118 [ 39.879826] __asan_report_load1_noabort+0x20/0x30 [ 39.880505] strlen+0xa8/0xb0 [ 39.881029] kasan_strings+0x320/0x8f8 [ 39.881808] kunit_try_run_case+0x14c/0x3d0 [ 39.882463] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 39.883201] kthread+0x24c/0x2d0 [ 39.883781] ret_from_fork+0x10/0x20 [ 39.884380] [ 39.884708] Allocated by task 248: [ 39.885146] kasan_save_stack+0x3c/0x68 [ 39.885757] kasan_save_track+0x20/0x40 [ 39.886253] kasan_save_alloc_info+0x40/0x58 [ 39.886848] __kasan_kmalloc+0xd4/0xd8 [ 39.887413] __kmalloc_cache_noprof+0x15c/0x3c8 [ 39.888323] kasan_strings+0xb4/0x8f8 [ 39.888900] kunit_try_run_case+0x14c/0x3d0 [ 39.889792] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 39.890525] kthread+0x24c/0x2d0 [ 39.891019] ret_from_fork+0x10/0x20 [ 39.891462] [ 39.891803] Freed by task 248: [ 39.892289] kasan_save_stack+0x3c/0x68 [ 39.892829] kasan_save_track+0x20/0x40 [ 39.894280] kasan_save_free_info+0x4c/0x78 [ 39.895383] __kasan_slab_free+0x6c/0x98 [ 39.895976] kfree+0x114/0x3d0 [ 39.896516] kasan_strings+0x128/0x8f8 [ 39.897047] kunit_try_run_case+0x14c/0x3d0 [ 39.897620] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 39.898330] kthread+0x24c/0x2d0 [ 39.899063] ret_from_fork+0x10/0x20 [ 39.899658] [ 39.899974] The buggy address belongs to the object at fff00000c65a90c0 [ 39.899974] which belongs to the cache kmalloc-32 of size 32 [ 39.901213] The buggy address is located 16 bytes inside of [ 39.901213] freed 32-byte region [fff00000c65a90c0, fff00000c65a90e0) [ 39.902746] [ 39.903127] The buggy address belongs to the physical page: [ 39.903715] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065a9 [ 39.904688] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 39.905505] page_type: f5(slab) [ 39.905912] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 39.906934] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 39.907717] page dumped because: kasan: bad access detected [ 39.908327] [ 39.908717] Memory state around the buggy address: [ 39.909390] fff00000c65a8f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 39.910489] fff00000c65a9000: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 39.911479] >fff00000c65a9080: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 39.912356] ^ [ 39.913136] fff00000c65a9100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.914630] fff00000c65a9180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.915741] ==================================================================
[ 31.535026] ================================================================== [ 31.535907] BUG: KASAN: slab-use-after-free in strlen+0x8f/0xb0 [ 31.536277] Read of size 1 at addr ffff8881029f3d50 by task kunit_try_catch/266 [ 31.537084] [ 31.537256] CPU: 1 UID: 0 PID: 266 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 31.539426] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.539960] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 31.541405] Call Trace: [ 31.541883] <TASK> [ 31.542366] dump_stack_lvl+0x73/0xb0 [ 31.542872] print_report+0xd1/0x640 [ 31.543319] ? __virt_addr_valid+0x1db/0x2d0 [ 31.543880] ? kasan_complete_mode_report_info+0x64/0x200 [ 31.544511] kasan_report+0x102/0x140 [ 31.544919] ? strlen+0x8f/0xb0 [ 31.545343] ? strlen+0x8f/0xb0 [ 31.545860] __asan_report_load1_noabort+0x18/0x20 [ 31.546560] strlen+0x8f/0xb0 [ 31.546900] kasan_strings+0x432/0xb60 [ 31.547582] ? __pfx_kasan_strings+0x10/0x10 [ 31.548022] ? __schedule+0xc3e/0x2790 [ 31.548618] ? __pfx_read_tsc+0x10/0x10 [ 31.549286] ? ktime_get_ts64+0x84/0x230 [ 31.549825] kunit_try_run_case+0x1b3/0x490 [ 31.550316] ? __pfx_kunit_try_run_case+0x10/0x10 [ 31.550870] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 31.551440] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 31.551997] ? __kthread_parkme+0x82/0x160 [ 31.552362] ? preempt_count_sub+0x50/0x80 [ 31.552814] ? __pfx_kunit_try_run_case+0x10/0x10 [ 31.553353] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 31.554368] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.555044] kthread+0x257/0x310 [ 31.555444] ? __pfx_kthread+0x10/0x10 [ 31.555969] ret_from_fork+0x41/0x80 [ 31.556506] ? __pfx_kthread+0x10/0x10 [ 31.556962] ret_from_fork_asm+0x1a/0x30 [ 31.557586] </TASK> [ 31.557905] [ 31.558523] Allocated by task 266: [ 31.558961] kasan_save_stack+0x3d/0x60 [ 31.559505] kasan_save_track+0x18/0x40 [ 31.560056] kasan_save_alloc_info+0x3b/0x50 [ 31.560513] __kasan_kmalloc+0xb7/0xc0 [ 31.561005] __kmalloc_cache_noprof+0x184/0x410 [ 31.561707] kasan_strings+0xb3/0xb60 [ 31.562316] kunit_try_run_case+0x1b3/0x490 [ 31.562652] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.563544] kthread+0x257/0x310 [ 31.563969] ret_from_fork+0x41/0x80 [ 31.564265] ret_from_fork_asm+0x1a/0x30 [ 31.564773] [ 31.565023] Freed by task 266: [ 31.565275] kasan_save_stack+0x3d/0x60 [ 31.565690] kasan_save_track+0x18/0x40 [ 31.566287] kasan_save_free_info+0x3f/0x60 [ 31.566634] __kasan_slab_free+0x56/0x70 [ 31.567225] kfree+0x123/0x3f0 [ 31.567659] kasan_strings+0x13a/0xb60 [ 31.568568] kunit_try_run_case+0x1b3/0x490 [ 31.569556] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.570028] kthread+0x257/0x310 [ 31.570732] ret_from_fork+0x41/0x80 [ 31.571220] ret_from_fork_asm+0x1a/0x30 [ 31.571606] [ 31.571894] The buggy address belongs to the object at ffff8881029f3d40 [ 31.571894] which belongs to the cache kmalloc-32 of size 32 [ 31.573066] The buggy address is located 16 bytes inside of [ 31.573066] freed 32-byte region [ffff8881029f3d40, ffff8881029f3d60) [ 31.574306] [ 31.574502] The buggy address belongs to the physical page: [ 31.575011] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f3 [ 31.575991] flags: 0x200000000000000(node=0|zone=2) [ 31.576589] page_type: f5(slab) [ 31.576926] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 31.577764] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 31.578389] page dumped because: kasan: bad access detected [ 31.578976] [ 31.579320] Memory state around the buggy address: [ 31.579791] ffff8881029f3c00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 31.580911] ffff8881029f3c80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 31.581720] >ffff8881029f3d00: 00 00 07 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 31.582505] ^ [ 31.583222] ffff8881029f3d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.583852] ffff8881029f3e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.584546] ==================================================================