Date
May 23, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 27.594077] ================================================================== [ 27.594323] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 27.594772] Write of size 4 at addr fff00000c5a34c75 by task kunit_try_catch/176 [ 27.594979] [ 27.595162] CPU: 0 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT [ 27.595568] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.595683] Hardware name: linux,dummy-virt (DT) [ 27.595874] Call trace: [ 27.596053] show_stack+0x20/0x38 (C) [ 27.596334] dump_stack_lvl+0x8c/0xd0 [ 27.596522] print_report+0x118/0x608 [ 27.596933] kasan_report+0xdc/0x128 [ 27.597100] kasan_check_range+0x100/0x1a8 [ 27.597172] __asan_memset+0x34/0x78 [ 27.597235] kmalloc_oob_memset_4+0x150/0x300 [ 27.597303] kunit_try_run_case+0x170/0x3f0 [ 27.597371] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.597459] kthread+0x328/0x630 [ 27.597802] ret_from_fork+0x10/0x20 [ 27.598031] [ 27.598099] Allocated by task 176: [ 27.598570] kasan_save_stack+0x3c/0x68 [ 27.598789] kasan_save_track+0x20/0x40 [ 27.598917] kasan_save_alloc_info+0x40/0x58 [ 27.599088] __kasan_kmalloc+0xd4/0xd8 [ 27.599205] __kmalloc_cache_noprof+0x15c/0x3c0 [ 27.599687] kmalloc_oob_memset_4+0xb0/0x300 [ 27.599963] kunit_try_run_case+0x170/0x3f0 [ 27.600140] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.600292] kthread+0x328/0x630 [ 27.600396] ret_from_fork+0x10/0x20 [ 27.600501] [ 27.600550] The buggy address belongs to the object at fff00000c5a34c00 [ 27.600550] which belongs to the cache kmalloc-128 of size 128 [ 27.600728] The buggy address is located 117 bytes inside of [ 27.600728] allocated 120-byte region [fff00000c5a34c00, fff00000c5a34c78) [ 27.600915] [ 27.600985] The buggy address belongs to the physical page: [ 27.601109] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a34 [ 27.601381] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 27.601747] page_type: f5(slab) [ 27.602004] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 27.602241] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 27.602368] page dumped because: kasan: bad access detected [ 27.602471] [ 27.602523] Memory state around the buggy address: [ 27.602617] fff00000c5a34b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.602745] fff00000c5a34b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.602871] >fff00000c5a34c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 27.602983] ^ [ 27.603101] fff00000c5a34c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.603226] fff00000c5a34d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.603340] ==================================================================
[ 12.674723] ================================================================== [ 12.675414] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 12.675710] Write of size 4 at addr ffff888102a2d575 by task kunit_try_catch/193 [ 12.676116] [ 12.676542] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT(voluntary) [ 12.676590] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.676602] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.676623] Call Trace: [ 12.676634] <TASK> [ 12.676650] dump_stack_lvl+0x73/0xb0 [ 12.676679] print_report+0xd1/0x650 [ 12.676702] ? __virt_addr_valid+0x1db/0x2d0 [ 12.676723] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.676744] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.676766] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.676788] kasan_report+0x141/0x180 [ 12.676811] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.676837] kasan_check_range+0x10c/0x1c0 [ 12.676857] __asan_memset+0x27/0x50 [ 12.676876] kmalloc_oob_memset_4+0x166/0x330 [ 12.676899] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.676922] ? __schedule+0x10cc/0x2b30 [ 12.676944] ? __pfx_read_tsc+0x10/0x10 [ 12.676964] ? ktime_get_ts64+0x86/0x230 [ 12.676989] kunit_try_run_case+0x1a5/0x480 [ 12.677013] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.677035] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.677058] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.677079] ? __kthread_parkme+0x82/0x180 [ 12.677101] ? preempt_count_sub+0x50/0x80 [ 12.677126] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.677148] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.677170] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.677192] kthread+0x337/0x6f0 [ 12.677208] ? trace_preempt_on+0x20/0xc0 [ 12.677230] ? __pfx_kthread+0x10/0x10 [ 12.677248] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.677268] ? calculate_sigpending+0x7b/0xa0 [ 12.677302] ? __pfx_kthread+0x10/0x10 [ 12.677328] ret_from_fork+0x41/0x80 [ 12.677348] ? __pfx_kthread+0x10/0x10 [ 12.677365] ret_from_fork_asm+0x1a/0x30 [ 12.677397] </TASK> [ 12.677408] [ 12.685258] Allocated by task 193: [ 12.685517] kasan_save_stack+0x45/0x70 [ 12.685737] kasan_save_track+0x18/0x40 [ 12.685896] kasan_save_alloc_info+0x3b/0x50 [ 12.686042] __kasan_kmalloc+0xb7/0xc0 [ 12.686250] __kmalloc_cache_noprof+0x189/0x420 [ 12.686478] kmalloc_oob_memset_4+0xac/0x330 [ 12.686768] kunit_try_run_case+0x1a5/0x480 [ 12.686918] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.687473] kthread+0x337/0x6f0 [ 12.687655] ret_from_fork+0x41/0x80 [ 12.687802] ret_from_fork_asm+0x1a/0x30 [ 12.688097] [ 12.688199] The buggy address belongs to the object at ffff888102a2d500 [ 12.688199] which belongs to the cache kmalloc-128 of size 128 [ 12.688603] The buggy address is located 117 bytes inside of [ 12.688603] allocated 120-byte region [ffff888102a2d500, ffff888102a2d578) [ 12.689146] [ 12.689372] The buggy address belongs to the physical page: [ 12.689609] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a2d [ 12.689884] flags: 0x200000000000000(node=0|zone=2) [ 12.690173] page_type: f5(slab) [ 12.690355] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.690700] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.690958] page dumped because: kasan: bad access detected [ 12.691214] [ 12.691287] Memory state around the buggy address: [ 12.691564] ffff888102a2d400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.691839] ffff888102a2d480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.692144] >ffff888102a2d500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.692370] ^ [ 12.692582] ffff888102a2d580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.692844] ffff888102a2d600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.693160] ==================================================================