Date
Nov. 20, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 39.827006] ================================================================== [ 39.827987] BUG: KASAN: slab-use-after-free in kasan_strings+0x858/0x8f8 [ 39.828795] Read of size 1 at addr fff00000c65a90d0 by task kunit_try_catch/248 [ 39.829938] [ 39.830304] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 39.831399] Tainted: [B]=BAD_PAGE, [N]=TEST [ 39.832038] Hardware name: linux,dummy-virt (DT) [ 39.832701] Call trace: [ 39.833175] show_stack+0x20/0x38 (C) [ 39.833870] dump_stack_lvl+0x8c/0xd0 [ 39.834565] print_report+0x118/0x5e0 [ 39.835259] kasan_report+0xc8/0x118 [ 39.835859] __asan_report_load1_noabort+0x20/0x30 [ 39.836550] kasan_strings+0x858/0x8f8 [ 39.837204] kunit_try_run_case+0x14c/0x3d0 [ 39.838176] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 39.838928] kthread+0x24c/0x2d0 [ 39.839511] ret_from_fork+0x10/0x20 [ 39.840085] [ 39.840472] Allocated by task 248: [ 39.841042] kasan_save_stack+0x3c/0x68 [ 39.841791] kasan_save_track+0x20/0x40 [ 39.842636] kasan_save_alloc_info+0x40/0x58 [ 39.843190] __kasan_kmalloc+0xd4/0xd8 [ 39.843780] __kmalloc_cache_noprof+0x15c/0x3c8 [ 39.844362] kasan_strings+0xb4/0x8f8 [ 39.844875] kunit_try_run_case+0x14c/0x3d0 [ 39.845955] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 39.846474] kthread+0x24c/0x2d0 [ 39.846939] ret_from_fork+0x10/0x20 [ 39.847509] [ 39.847862] Freed by task 248: [ 39.848363] kasan_save_stack+0x3c/0x68 [ 39.848980] kasan_save_track+0x20/0x40 [ 39.849935] kasan_save_free_info+0x4c/0x78 [ 39.850567] __kasan_slab_free+0x6c/0x98 [ 39.851165] kfree+0x114/0x3d0 [ 39.851599] kasan_strings+0x128/0x8f8 [ 39.852170] kunit_try_run_case+0x14c/0x3d0 [ 39.852704] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 39.853764] kthread+0x24c/0x2d0 [ 39.854262] ret_from_fork+0x10/0x20 [ 39.854737] [ 39.855072] The buggy address belongs to the object at fff00000c65a90c0 [ 39.855072] which belongs to the cache kmalloc-32 of size 32 [ 39.856339] The buggy address is located 16 bytes inside of [ 39.856339] freed 32-byte region [fff00000c65a90c0, fff00000c65a90e0) [ 39.857436] [ 39.857798] The buggy address belongs to the physical page: [ 39.858492] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065a9 [ 39.859264] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 39.860395] page_type: f5(slab) [ 39.860925] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 39.862092] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 39.862886] page dumped because: kasan: bad access detected [ 39.863517] [ 39.863828] Memory state around the buggy address: [ 39.864463] fff00000c65a8f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 39.865102] fff00000c65a9000: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 39.867063] >fff00000c65a9080: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 39.868332] ^ [ 39.868931] fff00000c65a9100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.869870] fff00000c65a9180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.870681] ==================================================================
[ 31.481309] ================================================================== [ 31.481762] BUG: KASAN: slab-use-after-free in kasan_strings+0xa0f/0xb60 [ 31.482511] Read of size 1 at addr ffff8881029f3d50 by task kunit_try_catch/266 [ 31.483770] [ 31.484405] CPU: 1 UID: 0 PID: 266 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 31.486041] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.486331] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 31.487460] Call Trace: [ 31.488066] <TASK> [ 31.488283] dump_stack_lvl+0x73/0xb0 [ 31.489316] print_report+0xd1/0x640 [ 31.489591] ? __virt_addr_valid+0x1db/0x2d0 [ 31.490572] ? kasan_complete_mode_report_info+0x64/0x200 [ 31.491685] kasan_report+0x102/0x140 [ 31.492074] ? kasan_strings+0xa0f/0xb60 [ 31.492871] ? kasan_strings+0xa0f/0xb60 [ 31.493820] __asan_report_load1_noabort+0x18/0x20 [ 31.494357] kasan_strings+0xa0f/0xb60 [ 31.495070] ? __pfx_kasan_strings+0x10/0x10 [ 31.495630] ? __schedule+0xc3e/0x2790 [ 31.496591] ? __pfx_read_tsc+0x10/0x10 [ 31.497572] ? ktime_get_ts64+0x84/0x230 [ 31.498076] kunit_try_run_case+0x1b3/0x490 [ 31.498909] ? __pfx_kunit_try_run_case+0x10/0x10 [ 31.499594] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 31.500419] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 31.501520] ? __kthread_parkme+0x82/0x160 [ 31.502146] ? preempt_count_sub+0x50/0x80 [ 31.502535] ? __pfx_kunit_try_run_case+0x10/0x10 [ 31.503484] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 31.504853] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.505268] kthread+0x257/0x310 [ 31.506044] ? __pfx_kthread+0x10/0x10 [ 31.506664] ret_from_fork+0x41/0x80 [ 31.506978] ? __pfx_kthread+0x10/0x10 [ 31.508088] ret_from_fork_asm+0x1a/0x30 [ 31.508754] </TASK> [ 31.509074] [ 31.509522] Allocated by task 266: [ 31.509824] kasan_save_stack+0x3d/0x60 [ 31.510317] kasan_save_track+0x18/0x40 [ 31.510791] kasan_save_alloc_info+0x3b/0x50 [ 31.511267] __kasan_kmalloc+0xb7/0xc0 [ 31.511822] __kmalloc_cache_noprof+0x184/0x410 [ 31.512144] kasan_strings+0xb3/0xb60 [ 31.512479] kunit_try_run_case+0x1b3/0x490 [ 31.513338] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.513859] kthread+0x257/0x310 [ 31.514214] ret_from_fork+0x41/0x80 [ 31.514782] ret_from_fork_asm+0x1a/0x30 [ 31.515114] [ 31.515307] Freed by task 266: [ 31.515768] kasan_save_stack+0x3d/0x60 [ 31.516681] kasan_save_track+0x18/0x40 [ 31.517012] kasan_save_free_info+0x3f/0x60 [ 31.517378] __kasan_slab_free+0x56/0x70 [ 31.518158] kfree+0x123/0x3f0 [ 31.518454] kasan_strings+0x13a/0xb60 [ 31.518911] kunit_try_run_case+0x1b3/0x490 [ 31.519211] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.519917] kthread+0x257/0x310 [ 31.520342] ret_from_fork+0x41/0x80 [ 31.520956] ret_from_fork_asm+0x1a/0x30 [ 31.521335] [ 31.521513] The buggy address belongs to the object at ffff8881029f3d40 [ 31.521513] which belongs to the cache kmalloc-32 of size 32 [ 31.522447] The buggy address is located 16 bytes inside of [ 31.522447] freed 32-byte region [ffff8881029f3d40, ffff8881029f3d60) [ 31.523309] [ 31.523469] The buggy address belongs to the physical page: [ 31.524490] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f3 [ 31.525811] flags: 0x200000000000000(node=0|zone=2) [ 31.526377] page_type: f5(slab) [ 31.526622] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 31.527446] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 31.528320] page dumped because: kasan: bad access detected [ 31.528678] [ 31.528858] Memory state around the buggy address: [ 31.529163] ffff8881029f3c00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 31.529786] ffff8881029f3c80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 31.531029] >ffff8881029f3d00: 00 00 07 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 31.532064] ^ [ 31.532649] ffff8881029f3d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.533082] ffff8881029f3e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.533886] ==================================================================