Date
Dec. 3, 2024, 11:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.595533] ================================================================== [ 33.596288] BUG: KASAN: slab-use-after-free in kasan_strings+0x838/0x8d8 [ 33.597216] Read of size 1 at addr fff00000c5921b90 by task kunit_try_catch/248 [ 33.598026] [ 33.598362] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 33.600408] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.601105] Hardware name: linux,dummy-virt (DT) [ 33.601608] Call trace: [ 33.601969] show_stack+0x20/0x38 (C) [ 33.603438] dump_stack_lvl+0x8c/0xd0 [ 33.604098] print_report+0x118/0x5e0 [ 33.604755] kasan_report+0xc8/0x118 [ 33.605435] __asan_report_load1_noabort+0x20/0x30 [ 33.606171] kasan_strings+0x838/0x8d8 [ 33.606826] kunit_try_run_case+0x14c/0x3d0 [ 33.607565] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.608434] kthread+0x24c/0x2d0 [ 33.609049] ret_from_fork+0x10/0x20 [ 33.609742] [ 33.610095] Allocated by task 248: [ 33.610715] kasan_save_stack+0x3c/0x68 [ 33.611417] kasan_save_track+0x20/0x40 [ 33.612119] kasan_save_alloc_info+0x40/0x58 [ 33.612811] __kasan_kmalloc+0xd4/0xd8 [ 33.613456] __kmalloc_cache_noprof+0x15c/0x3c0 [ 33.614187] kasan_strings+0xb0/0x8d8 [ 33.614758] kunit_try_run_case+0x14c/0x3d0 [ 33.615547] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.616320] kthread+0x24c/0x2d0 [ 33.616910] ret_from_fork+0x10/0x20 [ 33.617570] [ 33.618049] Freed by task 248: [ 33.618586] kasan_save_stack+0x3c/0x68 [ 33.619304] kasan_save_track+0x20/0x40 [ 33.619986] kasan_save_free_info+0x4c/0x78 [ 33.620704] __kasan_slab_free+0x6c/0x98 [ 33.621373] kfree+0x114/0x3c8 [ 33.621934] kasan_strings+0x124/0x8d8 [ 33.622578] kunit_try_run_case+0x14c/0x3d0 [ 33.623280] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.624220] kthread+0x24c/0x2d0 [ 33.624826] ret_from_fork+0x10/0x20 [ 33.625514] [ 33.625860] The buggy address belongs to the object at fff00000c5921b80 [ 33.625860] which belongs to the cache kmalloc-32 of size 32 [ 33.627451] The buggy address is located 16 bytes inside of [ 33.627451] freed 32-byte region [fff00000c5921b80, fff00000c5921ba0) [ 33.629047] [ 33.629502] The buggy address belongs to the physical page: [ 33.630263] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105921 [ 33.631472] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.632362] page_type: f5(slab) [ 33.632961] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 33.633993] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 33.634944] page dumped because: kasan: bad access detected [ 33.635745] [ 33.636234] Memory state around the buggy address: [ 33.636927] fff00000c5921a80: 00 00 07 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 33.637965] fff00000c5921b00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 33.638890] >fff00000c5921b80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 33.639786] ^ [ 33.640419] fff00000c5921c00: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 33.641370] fff00000c5921c80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 33.642308] ==================================================================
[ 28.883419] ================================================================== [ 28.884972] BUG: KASAN: slab-use-after-free in kasan_strings+0xa0c/0xb60 [ 28.885883] Read of size 1 at addr ffff888102a07b90 by task kunit_try_catch/268 [ 28.886323] [ 28.886587] CPU: 1 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 28.887537] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.887959] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 28.888715] Call Trace: [ 28.888948] <TASK> [ 28.889164] dump_stack_lvl+0x73/0xb0 [ 28.889693] print_report+0xd1/0x640 [ 28.890152] ? __virt_addr_valid+0x1db/0x2d0 [ 28.890663] ? kasan_complete_mode_report_info+0x64/0x200 [ 28.891096] kasan_report+0x102/0x140 [ 28.891465] ? kasan_strings+0xa0c/0xb60 [ 28.891884] ? kasan_strings+0xa0c/0xb60 [ 28.892318] __asan_report_load1_noabort+0x18/0x20 [ 28.893108] kasan_strings+0xa0c/0xb60 [ 28.893526] ? __pfx_kasan_strings+0x10/0x10 [ 28.893982] ? __schedule+0xc3e/0x2790 [ 28.894413] ? __pfx_read_tsc+0x10/0x10 [ 28.894885] ? ktime_get_ts64+0x86/0x230 [ 28.895226] kunit_try_run_case+0x1b3/0x490 [ 28.895748] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.896201] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 28.896743] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 28.897234] ? __kthread_parkme+0x82/0x160 [ 28.897648] ? preempt_count_sub+0x50/0x80 [ 28.897991] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.898503] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 28.898966] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.899407] kthread+0x257/0x310 [ 28.899793] ? __pfx_kthread+0x10/0x10 [ 28.900195] ret_from_fork+0x41/0x80 [ 28.900579] ? __pfx_kthread+0x10/0x10 [ 28.900957] ret_from_fork_asm+0x1a/0x30 [ 28.901375] </TASK> [ 28.901593] [ 28.901741] Allocated by task 268: [ 28.901960] kasan_save_stack+0x3d/0x60 [ 28.902379] kasan_save_track+0x18/0x40 [ 28.902799] kasan_save_alloc_info+0x3b/0x50 [ 28.903246] __kasan_kmalloc+0xb7/0xc0 [ 28.903629] __kmalloc_cache_noprof+0x184/0x410 [ 28.904273] kasan_strings+0xb9/0xb60 [ 28.904787] kunit_try_run_case+0x1b3/0x490 [ 28.905215] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.905798] kthread+0x257/0x310 [ 28.906182] ret_from_fork+0x41/0x80 [ 28.906607] ret_from_fork_asm+0x1a/0x30 [ 28.906982] [ 28.907147] Freed by task 268: [ 28.907348] kasan_save_stack+0x3d/0x60 [ 28.907781] kasan_save_track+0x18/0x40 [ 28.908385] kasan_save_free_info+0x3f/0x60 [ 28.908806] __kasan_slab_free+0x56/0x70 [ 28.909164] kfree+0x123/0x3f0 [ 28.909509] kasan_strings+0x13c/0xb60 [ 28.909931] kunit_try_run_case+0x1b3/0x490 [ 28.910344] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.910793] kthread+0x257/0x310 [ 28.911162] ret_from_fork+0x41/0x80 [ 28.911531] ret_from_fork_asm+0x1a/0x30 [ 28.911843] [ 28.912071] The buggy address belongs to the object at ffff888102a07b80 [ 28.912071] which belongs to the cache kmalloc-32 of size 32 [ 28.913153] The buggy address is located 16 bytes inside of [ 28.913153] freed 32-byte region [ffff888102a07b80, ffff888102a07ba0) [ 28.913808] [ 28.914036] The buggy address belongs to the physical page: [ 28.914532] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a07 [ 28.915256] flags: 0x200000000000000(node=0|zone=2) [ 28.915791] page_type: f5(slab) [ 28.916167] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 28.916972] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 28.917645] page dumped because: kasan: bad access detected [ 28.918045] [ 28.918309] Memory state around the buggy address: [ 28.918869] ffff888102a07a80: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 28.919427] ffff888102a07b00: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 28.919900] >ffff888102a07b80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 28.920268] ^ [ 28.920747] ffff888102a07c00: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 28.921395] ffff888102a07c80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 28.922031] ==================================================================