Date
June 2, 2025, 2:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.204681] ================================================================== [ 22.205849] BUG: KASAN: slab-use-after-free in kasan_strings+0x894/0x938 [ 22.206376] Read of size 1 at addr fff00000c6cfdcd0 by task kunit_try_catch/246 [ 22.207033] [ 22.207867] CPU: 0 UID: 0 PID: 246 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 22.208089] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.208164] Hardware name: linux,dummy-virt (DT) [ 22.208267] Call trace: [ 22.208327] dump_backtrace+0x9c/0x128 [ 22.208442] show_stack+0x20/0x38 [ 22.208537] dump_stack_lvl+0x8c/0xd0 [ 22.208636] print_report+0x118/0x5f0 [ 22.208727] kasan_report+0xdc/0x128 [ 22.208822] __asan_report_load1_noabort+0x20/0x30 [ 22.208909] kasan_strings+0x894/0x938 [ 22.208962] kunit_try_run_case+0x170/0x3f0 [ 22.209016] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.209069] kthread+0x24c/0x2d0 [ 22.209115] ret_from_fork+0x10/0x20 [ 22.209167] [ 22.216905] Allocated by task 246: [ 22.218796] kasan_save_stack+0x3c/0x68 [ 22.219875] kasan_save_track+0x20/0x40 [ 22.220223] kasan_save_alloc_info+0x40/0x58 [ 22.221724] __kasan_kmalloc+0xd4/0xd8 [ 22.222586] __kmalloc_cache_noprof+0x154/0x320 [ 22.223821] kasan_strings+0xb0/0x938 [ 22.224905] kunit_try_run_case+0x170/0x3f0 [ 22.226107] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.226581] kthread+0x24c/0x2d0 [ 22.227006] ret_from_fork+0x10/0x20 [ 22.228030] [ 22.228440] Freed by task 246: [ 22.228722] kasan_save_stack+0x3c/0x68 [ 22.229349] kasan_save_track+0x20/0x40 [ 22.229970] kasan_save_free_info+0x4c/0x78 [ 22.230527] __kasan_slab_free+0x6c/0x98 [ 22.230869] kfree+0x110/0x3b8 [ 22.231545] kasan_strings+0x128/0x938 [ 22.232166] kunit_try_run_case+0x170/0x3f0 [ 22.232717] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.233228] kthread+0x24c/0x2d0 [ 22.233632] ret_from_fork+0x10/0x20 [ 22.234061] [ 22.234309] The buggy address belongs to the object at fff00000c6cfdcc0 [ 22.234309] which belongs to the cache kmalloc-32 of size 32 [ 22.235219] The buggy address is located 16 bytes inside of [ 22.235219] freed 32-byte region [fff00000c6cfdcc0, fff00000c6cfdce0) [ 22.236636] [ 22.236887] The buggy address belongs to the physical page: [ 22.237228] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106cfd [ 22.237639] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.237968] page_type: f5(slab) [ 22.238196] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 22.239352] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 22.240351] page dumped because: kasan: bad access detected [ 22.240928] [ 22.241227] Memory state around the buggy address: [ 22.241793] fff00000c6cfdb80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 22.242502] fff00000c6cfdc00: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 22.243334] >fff00000c6cfdc80: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 22.244024] ^ [ 22.244394] fff00000c6cfdd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.245169] fff00000c6cfdd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.246020] ==================================================================
[ 14.075675] ================================================================== [ 14.076079] BUG: KASAN: slab-use-after-free in kasan_strings+0xa0f/0xb60 [ 14.076417] Read of size 1 at addr ffff888102632890 by task kunit_try_catch/264 [ 14.076680] [ 14.076786] CPU: 0 UID: 0 PID: 264 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 14.076827] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.076839] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.076859] Call Trace: [ 14.076873] <TASK> [ 14.076888] dump_stack_lvl+0x73/0xb0 [ 14.076912] print_report+0xd1/0x640 [ 14.076933] ? __virt_addr_valid+0x1db/0x2d0 [ 14.076956] ? kasan_strings+0xa0f/0xb60 [ 14.076977] ? kasan_complete_mode_report_info+0x64/0x200 [ 14.076999] ? kasan_strings+0xa0f/0xb60 [ 14.077020] kasan_report+0x140/0x180 [ 14.077042] ? kasan_strings+0xa0f/0xb60 [ 14.077087] __asan_report_load1_noabort+0x18/0x20 [ 14.077109] kasan_strings+0xa0f/0xb60 [ 14.077130] ? __pfx_kasan_strings+0x10/0x10 [ 14.077151] ? __schedule+0xc49/0x27a0 [ 14.077170] ? __pfx_read_tsc+0x10/0x10 [ 14.077188] ? ktime_get_ts64+0x84/0x230 [ 14.077212] kunit_try_run_case+0x1a6/0x480 [ 14.077233] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.077251] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 14.077270] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.077294] ? __kthread_parkme+0x82/0x160 [ 14.077312] ? preempt_count_sub+0x50/0x80 [ 14.077334] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.077353] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.077376] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.077400] kthread+0x257/0x310 [ 14.077417] ? __pfx_kthread+0x10/0x10 [ 14.077435] ret_from_fork+0x41/0x80 [ 14.077454] ? __pfx_kthread+0x10/0x10 [ 14.077471] ret_from_fork_asm+0x1a/0x30 [ 14.077499] </TASK> [ 14.077508] [ 14.081911] Allocated by task 264: [ 14.082139] kasan_save_stack+0x45/0x70 [ 14.082358] kasan_save_track+0x18/0x40 [ 14.082579] kasan_save_alloc_info+0x3b/0x50 [ 14.082806] __kasan_kmalloc+0xb7/0xc0 [ 14.082932] __kmalloc_cache_noprof+0x168/0x350 [ 14.083118] kasan_strings+0xb3/0xb60 [ 14.083204] kunit_try_run_case+0x1a6/0x480 [ 14.083291] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.083394] kthread+0x257/0x310 [ 14.083465] ret_from_fork+0x41/0x80 [ 14.083544] ret_from_fork_asm+0x1a/0x30 [ 14.083626] [ 14.083682] Freed by task 264: [ 14.083759] kasan_save_stack+0x45/0x70 [ 14.083981] kasan_save_track+0x18/0x40 [ 14.084218] kasan_save_free_info+0x3f/0x60 [ 14.084477] __kasan_slab_free+0x56/0x70 [ 14.084695] kfree+0x123/0x3d0 [ 14.084878] kasan_strings+0x13a/0xb60 [ 14.085112] kunit_try_run_case+0x1a6/0x480 [ 14.085311] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.085566] kthread+0x257/0x310 [ 14.085646] ret_from_fork+0x41/0x80 [ 14.085736] ret_from_fork_asm+0x1a/0x30 [ 14.085823] [ 14.085871] The buggy address belongs to the object at ffff888102632880 [ 14.085871] which belongs to the cache kmalloc-32 of size 32 [ 14.086443] The buggy address is located 16 bytes inside of [ 14.086443] freed 32-byte region [ffff888102632880, ffff8881026328a0) [ 14.086931] [ 14.087046] The buggy address belongs to the physical page: [ 14.087228] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102632 [ 14.087452] flags: 0x200000000000000(node=0|zone=2) [ 14.087631] page_type: f5(slab) [ 14.087749] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 14.087980] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 14.088266] page dumped because: kasan: bad access detected [ 14.088421] [ 14.088520] Memory state around the buggy address: [ 14.088697] ffff888102632780: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 14.088927] ffff888102632800: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 14.089165] >ffff888102632880: fa fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc [ 14.089405] ^ [ 14.089533] ffff888102632900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.089730] ffff888102632980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.090001] ==================================================================