Date
June 24, 2025, 12:47 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.877097] ================================================================== [ 23.877226] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 23.877366] Write of size 2 at addr fff00000c59ef077 by task kunit_try_catch/174 [ 23.877500] [ 23.877594] CPU: 0 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 23.877792] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.877855] Hardware name: linux,dummy-virt (DT) [ 23.877929] Call trace: [ 23.877982] show_stack+0x20/0x38 (C) [ 23.878111] dump_stack_lvl+0x8c/0xd0 [ 23.878237] print_report+0x118/0x608 [ 23.878348] kasan_report+0xdc/0x128 [ 23.879193] kasan_check_range+0x100/0x1a8 [ 23.879429] __asan_memset+0x34/0x78 [ 23.879624] kmalloc_oob_memset_2+0x150/0x2f8 [ 23.879751] kunit_try_run_case+0x170/0x3f0 [ 23.880619] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.880765] kthread+0x328/0x630 [ 23.881124] ret_from_fork+0x10/0x20 [ 23.881609] [ 23.881773] Allocated by task 174: [ 23.881854] kasan_save_stack+0x3c/0x68 [ 23.882179] kasan_save_track+0x20/0x40 [ 23.882554] kasan_save_alloc_info+0x40/0x58 [ 23.882890] __kasan_kmalloc+0xd4/0xd8 [ 23.883077] __kmalloc_cache_noprof+0x16c/0x3c0 [ 23.883265] kmalloc_oob_memset_2+0xb0/0x2f8 [ 23.883448] kunit_try_run_case+0x170/0x3f0 [ 23.883562] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.883762] kthread+0x328/0x630 [ 23.884089] ret_from_fork+0x10/0x20 [ 23.884249] [ 23.884491] The buggy address belongs to the object at fff00000c59ef000 [ 23.884491] which belongs to the cache kmalloc-128 of size 128 [ 23.884630] The buggy address is located 119 bytes inside of [ 23.884630] allocated 120-byte region [fff00000c59ef000, fff00000c59ef078) [ 23.884975] [ 23.885170] The buggy address belongs to the physical page: [ 23.885545] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059ef [ 23.885731] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 23.886123] page_type: f5(slab) [ 23.886374] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 23.886632] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.886731] page dumped because: kasan: bad access detected [ 23.886811] [ 23.886857] Memory state around the buggy address: [ 23.887603] fff00000c59eef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.887895] fff00000c59eef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.888057] >fff00000c59ef000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 23.888168] ^ [ 23.888442] fff00000c59ef080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.888729] fff00000c59ef100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.889074] ==================================================================
[ 11.805165] ================================================================== [ 11.805716] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 11.806347] Write of size 2 at addr ffff8881029da277 by task kunit_try_catch/192 [ 11.806793] [ 11.807031] CPU: 1 UID: 0 PID: 192 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 11.807118] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.807136] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.807171] Call Trace: [ 11.807196] <TASK> [ 11.807228] dump_stack_lvl+0x73/0xb0 [ 11.807285] print_report+0xd1/0x650 [ 11.807322] ? __virt_addr_valid+0x1db/0x2d0 [ 11.807356] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.807392] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.807430] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.807466] kasan_report+0x141/0x180 [ 11.807507] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.807552] kasan_check_range+0x10c/0x1c0 [ 11.807585] __asan_memset+0x27/0x50 [ 11.807618] kmalloc_oob_memset_2+0x166/0x330 [ 11.807671] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.807706] ? __schedule+0x10cc/0x2b60 [ 11.807741] ? __pfx_read_tsc+0x10/0x10 [ 11.807775] ? ktime_get_ts64+0x86/0x230 [ 11.807821] kunit_try_run_case+0x1a5/0x480 [ 11.807869] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.807910] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.807956] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.808000] ? __kthread_parkme+0x82/0x180 [ 11.808042] ? preempt_count_sub+0x50/0x80 [ 11.808087] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.808120] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.808151] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.808210] kthread+0x337/0x6f0 [ 11.808238] ? trace_preempt_on+0x20/0xc0 [ 11.808270] ? __pfx_kthread+0x10/0x10 [ 11.808307] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.808337] ? calculate_sigpending+0x7b/0xa0 [ 11.808366] ? __pfx_kthread+0x10/0x10 [ 11.808391] ret_from_fork+0x41/0x80 [ 11.808419] ? __pfx_kthread+0x10/0x10 [ 11.808446] ret_from_fork_asm+0x1a/0x30 [ 11.808489] </TASK> [ 11.808508] [ 11.820878] Allocated by task 192: [ 11.821104] kasan_save_stack+0x45/0x70 [ 11.821359] kasan_save_track+0x18/0x40 [ 11.821586] kasan_save_alloc_info+0x3b/0x50 [ 11.822866] __kasan_kmalloc+0xb7/0xc0 [ 11.823076] __kmalloc_cache_noprof+0x189/0x420 [ 11.823489] kmalloc_oob_memset_2+0xac/0x330 [ 11.824045] kunit_try_run_case+0x1a5/0x480 [ 11.824299] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.824648] kthread+0x337/0x6f0 [ 11.824907] ret_from_fork+0x41/0x80 [ 11.825079] ret_from_fork_asm+0x1a/0x30 [ 11.825380] [ 11.825511] The buggy address belongs to the object at ffff8881029da200 [ 11.825511] which belongs to the cache kmalloc-128 of size 128 [ 11.826658] The buggy address is located 119 bytes inside of [ 11.826658] allocated 120-byte region [ffff8881029da200, ffff8881029da278) [ 11.827583] [ 11.827816] The buggy address belongs to the physical page: [ 11.828031] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029da [ 11.828659] flags: 0x200000000000000(node=0|zone=2) [ 11.829015] page_type: f5(slab) [ 11.829437] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.829782] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.830284] page dumped because: kasan: bad access detected [ 11.831114] [ 11.831269] Memory state around the buggy address: [ 11.831693] ffff8881029da100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.832145] ffff8881029da180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.832827] >ffff8881029da200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.833060] ^ [ 11.833736] ffff8881029da280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.834130] ffff8881029da300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.834998] ==================================================================