Date
Dec. 9, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.625111] ================================================================== [ 24.626102] BUG: KASAN: slab-use-after-free in kmalloc_uaf_memset+0x170/0x310 [ 24.626913] Write of size 33 at addr fff00000c125ae00 by task kunit_try_catch/174 [ 24.628855] [ 24.629216] CPU: 1 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 24.630396] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.631001] Hardware name: linux,dummy-virt (DT) [ 24.631549] Call trace: [ 24.632011] show_stack+0x20/0x38 (C) [ 24.632575] dump_stack_lvl+0x8c/0xd0 [ 24.633583] print_report+0x118/0x5e0 [ 24.634365] kasan_report+0xc8/0x118 [ 24.634916] kasan_check_range+0x100/0x1a8 [ 24.635594] __asan_memset+0x34/0x78 [ 24.636210] kmalloc_uaf_memset+0x170/0x310 [ 24.636916] kunit_try_run_case+0x14c/0x3d0 [ 24.637507] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.638379] kthread+0x24c/0x2d0 [ 24.639110] ret_from_fork+0x10/0x20 [ 24.639640] [ 24.639935] Allocated by task 174: [ 24.640495] kasan_save_stack+0x3c/0x68 [ 24.641214] kasan_save_track+0x20/0x40 [ 24.641844] kasan_save_alloc_info+0x40/0x58 [ 24.642428] __kasan_kmalloc+0xd4/0xd8 [ 24.643046] __kmalloc_cache_noprof+0x15c/0x3c0 [ 24.643722] kmalloc_uaf_memset+0xb8/0x310 [ 24.644301] kunit_try_run_case+0x14c/0x3d0 [ 24.644969] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.645675] kthread+0x24c/0x2d0 [ 24.646220] ret_from_fork+0x10/0x20 [ 24.646835] [ 24.647161] Freed by task 174: [ 24.647694] kasan_save_stack+0x3c/0x68 [ 24.648289] kasan_save_track+0x20/0x40 [ 24.648911] kasan_save_free_info+0x4c/0x78 [ 24.649529] __kasan_slab_free+0x6c/0x98 [ 24.650145] kfree+0x114/0x3c8 [ 24.650637] kmalloc_uaf_memset+0x11c/0x310 [ 24.651294] kunit_try_run_case+0x14c/0x3d0 [ 24.651909] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.652670] kthread+0x24c/0x2d0 [ 24.653237] ret_from_fork+0x10/0x20 [ 24.653845] [ 24.654166] The buggy address belongs to the object at fff00000c125ae00 [ 24.654166] which belongs to the cache kmalloc-64 of size 64 [ 24.655448] The buggy address is located 0 bytes inside of [ 24.655448] freed 64-byte region [fff00000c125ae00, fff00000c125ae40) [ 24.656576] [ 24.656978] The buggy address belongs to the physical page: [ 24.657562] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10125a [ 24.658687] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.659603] page_type: f5(slab) [ 24.660120] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 24.661088] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 24.661957] page dumped because: kasan: bad access detected [ 24.662652] [ 24.662993] Memory state around the buggy address: [ 24.663642] fff00000c125ad00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.664520] fff00000c125ad80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.665412] >fff00000c125ae00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.666254] ^ [ 24.666759] fff00000c125ae80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.667573] fff00000c125af00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.668377] ==================================================================
[ 24.584643] ================================================================== [ 24.586459] BUG: KASAN: slab-use-after-free in kmalloc_uaf_memset+0x1a4/0x360 [ 24.587502] Write of size 33 at addr ffff888102952d00 by task kunit_try_catch/193 [ 24.588550] [ 24.588819] CPU: 0 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 24.590327] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.590716] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.591952] Call Trace: [ 24.592174] <TASK> [ 24.592856] dump_stack_lvl+0x73/0xb0 [ 24.593550] print_report+0xd1/0x640 [ 24.594221] ? __virt_addr_valid+0x1db/0x2d0 [ 24.594829] ? kasan_complete_mode_report_info+0x64/0x200 [ 24.595387] kasan_report+0x102/0x140 [ 24.595766] ? kmalloc_uaf_memset+0x1a4/0x360 [ 24.596506] ? kmalloc_uaf_memset+0x1a4/0x360 [ 24.597707] kasan_check_range+0x10c/0x1c0 [ 24.598238] __asan_memset+0x27/0x50 [ 24.598574] kmalloc_uaf_memset+0x1a4/0x360 [ 24.599269] ? __pfx_kmalloc_uaf_memset+0x10/0x10 [ 24.599789] ? __schedule+0xc70/0x27e0 [ 24.600507] ? __pfx_read_tsc+0x10/0x10 [ 24.601147] ? ktime_get_ts64+0x86/0x230 [ 24.601638] kunit_try_run_case+0x1b3/0x490 [ 24.602553] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.603202] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 24.603694] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.604798] ? __kthread_parkme+0x82/0x160 [ 24.605269] ? preempt_count_sub+0x50/0x80 [ 24.605610] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.606639] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.607578] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.608132] kthread+0x257/0x310 [ 24.608529] ? __pfx_kthread+0x10/0x10 [ 24.609247] ret_from_fork+0x41/0x80 [ 24.609547] ? __pfx_kthread+0x10/0x10 [ 24.610465] ret_from_fork_asm+0x1a/0x30 [ 24.611266] </TASK> [ 24.611471] [ 24.611702] Allocated by task 193: [ 24.612143] kasan_save_stack+0x3d/0x60 [ 24.612670] kasan_save_track+0x18/0x40 [ 24.613626] kasan_save_alloc_info+0x3b/0x50 [ 24.613956] __kasan_kmalloc+0xb7/0xc0 [ 24.614737] __kmalloc_cache_noprof+0x184/0x410 [ 24.615714] kmalloc_uaf_memset+0xaa/0x360 [ 24.616248] kunit_try_run_case+0x1b3/0x490 [ 24.616811] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.617490] kthread+0x257/0x310 [ 24.618535] ret_from_fork+0x41/0x80 [ 24.619266] ret_from_fork_asm+0x1a/0x30 [ 24.619659] [ 24.619903] Freed by task 193: [ 24.620466] kasan_save_stack+0x3d/0x60 [ 24.621511] kasan_save_track+0x18/0x40 [ 24.621866] kasan_save_free_info+0x3f/0x60 [ 24.622515] __kasan_slab_free+0x56/0x70 [ 24.623396] kfree+0x123/0x3f0 [ 24.623722] kmalloc_uaf_memset+0x12c/0x360 [ 24.624446] kunit_try_run_case+0x1b3/0x490 [ 24.625042] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.625489] kthread+0x257/0x310 [ 24.625844] ret_from_fork+0x41/0x80 [ 24.626634] ret_from_fork_asm+0x1a/0x30 [ 24.627011] [ 24.627691] The buggy address belongs to the object at ffff888102952d00 [ 24.627691] which belongs to the cache kmalloc-64 of size 64 [ 24.629392] The buggy address is located 0 bytes inside of [ 24.629392] freed 64-byte region [ffff888102952d00, ffff888102952d40) [ 24.631208] [ 24.631413] The buggy address belongs to the physical page: [ 24.631835] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102952 [ 24.632801] flags: 0x200000000000000(node=0|zone=2) [ 24.633359] page_type: f5(slab) [ 24.633778] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 24.635225] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 24.636224] page dumped because: kasan: bad access detected [ 24.636703] [ 24.636964] Memory state around the buggy address: [ 24.637553] ffff888102952c00: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc [ 24.638700] ffff888102952c80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.639074] >ffff888102952d00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.639427] ^ [ 24.640349] ffff888102952d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.640970] ffff888102952e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.642067] ==================================================================