Date
June 2, 2025, 2:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.016480] ================================================================== [ 22.017421] BUG: KASAN: slab-out-of-bounds in memchr+0x78/0x88 [ 22.018170] Read of size 1 at addr fff00000c6cf8fd8 by task kunit_try_catch/242 [ 22.018568] [ 22.019351] CPU: 1 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 22.019605] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.019649] Hardware name: linux,dummy-virt (DT) [ 22.019694] Call trace: [ 22.019728] dump_backtrace+0x9c/0x128 [ 22.019793] show_stack+0x20/0x38 [ 22.019839] dump_stack_lvl+0x8c/0xd0 [ 22.019888] print_report+0x118/0x5f0 [ 22.019936] kasan_report+0xdc/0x128 [ 22.019979] __asan_report_load1_noabort+0x20/0x30 [ 22.020028] memchr+0x78/0x88 [ 22.020070] kasan_memchr+0x150/0x2f0 [ 22.020115] kunit_try_run_case+0x170/0x3f0 [ 22.020163] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.020217] kthread+0x24c/0x2d0 [ 22.020294] ret_from_fork+0x10/0x20 [ 22.020347] [ 22.025144] Allocated by task 242: [ 22.025764] kasan_save_stack+0x3c/0x68 [ 22.026359] kasan_save_track+0x20/0x40 [ 22.026929] kasan_save_alloc_info+0x40/0x58 [ 22.027468] __kasan_kmalloc+0xd4/0xd8 [ 22.028033] __kmalloc_cache_noprof+0x154/0x320 [ 22.028566] kasan_memchr+0xb0/0x2f0 [ 22.029071] kunit_try_run_case+0x170/0x3f0 [ 22.029630] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.030315] kthread+0x24c/0x2d0 [ 22.030744] ret_from_fork+0x10/0x20 [ 22.031268] [ 22.031603] The buggy address belongs to the object at fff00000c6cf8fc0 [ 22.031603] which belongs to the cache kmalloc-32 of size 32 [ 22.032710] The buggy address is located 0 bytes to the right of [ 22.032710] allocated 24-byte region [fff00000c6cf8fc0, fff00000c6cf8fd8) [ 22.033856] [ 22.034191] The buggy address belongs to the physical page: [ 22.034707] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106cf8 [ 22.035549] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.036218] page_type: f5(slab) [ 22.036692] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 22.037433] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 22.038114] page dumped because: kasan: bad access detected [ 22.038556] [ 22.038878] Memory state around the buggy address: [ 22.039426] fff00000c6cf8e80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 22.040035] fff00000c6cf8f00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 22.040663] >fff00000c6cf8f80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 22.041259] ^ [ 22.041759] fff00000c6cf9000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 22.042362] fff00000c6cf9080: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 22.042961] ==================================================================
[ 13.986740] ================================================================== [ 13.987147] BUG: KASAN: slab-out-of-bounds in memchr+0x79/0x90 [ 13.987335] Read of size 1 at addr ffff888102986bd8 by task kunit_try_catch/260 [ 13.987597] [ 13.987657] CPU: 1 UID: 0 PID: 260 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 13.987707] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.987719] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.987737] Call Trace: [ 13.987750] <TASK> [ 13.987765] dump_stack_lvl+0x73/0xb0 [ 13.987787] print_report+0xd1/0x640 [ 13.987807] ? __virt_addr_valid+0x1db/0x2d0 [ 13.987828] ? memchr+0x79/0x90 [ 13.987845] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.987865] ? memchr+0x79/0x90 [ 13.987882] kasan_report+0x140/0x180 [ 13.987901] ? memchr+0x79/0x90 [ 13.987923] __asan_report_load1_noabort+0x18/0x20 [ 13.987942] memchr+0x79/0x90 [ 13.987961] kasan_memchr+0x163/0x320 [ 13.987979] ? __pfx_kasan_memchr+0x10/0x10 [ 13.987999] ? __schedule+0xc49/0x27a0 [ 13.988016] ? __pfx_read_tsc+0x10/0x10 [ 13.988032] ? ktime_get_ts64+0x84/0x230 [ 13.988054] kunit_try_run_case+0x1a6/0x480 [ 13.988074] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.988091] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 13.988109] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.988130] ? __kthread_parkme+0x82/0x160 [ 13.988147] ? preempt_count_sub+0x50/0x80 [ 13.988166] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.988183] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.988205] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.988226] kthread+0x257/0x310 [ 13.988242] ? __pfx_kthread+0x10/0x10 [ 13.988258] ret_from_fork+0x41/0x80 [ 13.988275] ? __pfx_kthread+0x10/0x10 [ 13.988291] ret_from_fork_asm+0x1a/0x30 [ 13.988322] </TASK> [ 13.988608] [ 13.993877] Allocated by task 260: [ 13.994298] kasan_save_stack+0x45/0x70 [ 13.994558] kasan_save_track+0x18/0x40 [ 13.994782] kasan_save_alloc_info+0x3b/0x50 [ 13.994880] __kasan_kmalloc+0xb7/0xc0 [ 13.994966] __kmalloc_cache_noprof+0x168/0x350 [ 13.995057] kasan_memchr+0xad/0x320 [ 13.995135] kunit_try_run_case+0x1a6/0x480 [ 13.995218] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.995316] kthread+0x257/0x310 [ 13.995434] ret_from_fork+0x41/0x80 [ 13.995726] ret_from_fork_asm+0x1a/0x30 [ 13.996038] [ 13.996348] The buggy address belongs to the object at ffff888102986bc0 [ 13.996348] which belongs to the cache kmalloc-32 of size 32 [ 13.997158] The buggy address is located 0 bytes to the right of [ 13.997158] allocated 24-byte region [ffff888102986bc0, ffff888102986bd8) [ 13.997695] [ 13.997792] The buggy address belongs to the physical page: [ 13.998040] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102986 [ 13.998301] flags: 0x200000000000000(node=0|zone=2) [ 13.998501] page_type: f5(slab) [ 13.998616] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 13.998843] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 13.999110] page dumped because: kasan: bad access detected [ 13.999268] [ 13.999366] Memory state around the buggy address: [ 13.999526] ffff888102986a80: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 13.999763] ffff888102986b00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 13.999947] >ffff888102986b80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 14.000188] ^ [ 14.000406] ffff888102986c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.000586] ffff888102986c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.000841] ==================================================================