Date
July 19, 2025, 11:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.308504] ================================================================== [ 15.308599] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x144/0x2d0 [ 15.308929] Write of size 128 at addr fff00000c5f9db00 by task kunit_try_catch/171 [ 15.308986] [ 15.309021] CPU: 1 UID: 0 PID: 171 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.309100] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.309127] Hardware name: linux,dummy-virt (DT) [ 15.309606] Call trace: [ 15.309674] show_stack+0x20/0x38 (C) [ 15.310169] dump_stack_lvl+0x8c/0xd0 [ 15.310298] print_report+0x118/0x5d0 [ 15.310392] kasan_report+0xdc/0x128 [ 15.310445] kasan_check_range+0x100/0x1a8 [ 15.310777] __asan_memset+0x34/0x78 [ 15.310873] kmalloc_oob_in_memset+0x144/0x2d0 [ 15.311144] kunit_try_run_case+0x170/0x3f0 [ 15.311427] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.311523] kthread+0x328/0x630 [ 15.311742] ret_from_fork+0x10/0x20 [ 15.311941] [ 15.311986] Allocated by task 171: [ 15.312081] kasan_save_stack+0x3c/0x68 [ 15.312180] kasan_save_track+0x20/0x40 [ 15.312218] kasan_save_alloc_info+0x40/0x58 [ 15.312563] __kasan_kmalloc+0xd4/0xd8 [ 15.312631] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.312733] kmalloc_oob_in_memset+0xb0/0x2d0 [ 15.312772] kunit_try_run_case+0x170/0x3f0 [ 15.312838] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.313184] kthread+0x328/0x630 [ 15.313255] ret_from_fork+0x10/0x20 [ 15.313351] [ 15.313373] The buggy address belongs to the object at fff00000c5f9db00 [ 15.313373] which belongs to the cache kmalloc-128 of size 128 [ 15.313842] The buggy address is located 0 bytes inside of [ 15.313842] allocated 120-byte region [fff00000c5f9db00, fff00000c5f9db78) [ 15.314034] [ 15.314057] The buggy address belongs to the physical page: [ 15.314088] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105f9d [ 15.314163] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.314569] page_type: f5(slab) [ 15.314679] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.314741] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.315110] page dumped because: kasan: bad access detected [ 15.315174] [ 15.315262] Memory state around the buggy address: [ 15.315333] fff00000c5f9da00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.315755] fff00000c5f9da80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.315897] >fff00000c5f9db00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.316034] ^ [ 15.316102] fff00000c5f9db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.316326] fff00000c5f9dc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.316496] ==================================================================
[ 12.147760] ================================================================== [ 12.148433] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x15f/0x320 [ 12.148746] Write of size 128 at addr ffff8881027e4100 by task kunit_try_catch/188 [ 12.149046] [ 12.149408] CPU: 0 UID: 0 PID: 188 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.149457] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.149468] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.149489] Call Trace: [ 12.149513] <TASK> [ 12.149529] dump_stack_lvl+0x73/0xb0 [ 12.149559] print_report+0xd1/0x610 [ 12.149580] ? __virt_addr_valid+0x1db/0x2d0 [ 12.149602] ? kmalloc_oob_in_memset+0x15f/0x320 [ 12.149623] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.149645] ? kmalloc_oob_in_memset+0x15f/0x320 [ 12.149666] kasan_report+0x141/0x180 [ 12.149687] ? kmalloc_oob_in_memset+0x15f/0x320 [ 12.149713] kasan_check_range+0x10c/0x1c0 [ 12.149735] __asan_memset+0x27/0x50 [ 12.149753] kmalloc_oob_in_memset+0x15f/0x320 [ 12.149775] ? __pfx_kmalloc_oob_in_memset+0x10/0x10 [ 12.149797] ? __schedule+0x10cc/0x2b60 [ 12.149819] ? __pfx_read_tsc+0x10/0x10 [ 12.149839] ? ktime_get_ts64+0x86/0x230 [ 12.149862] kunit_try_run_case+0x1a5/0x480 [ 12.149887] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.149909] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.149932] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.149955] ? __kthread_parkme+0x82/0x180 [ 12.149974] ? preempt_count_sub+0x50/0x80 [ 12.149997] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.150020] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.150043] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.150066] kthread+0x337/0x6f0 [ 12.150092] ? trace_preempt_on+0x20/0xc0 [ 12.150115] ? __pfx_kthread+0x10/0x10 [ 12.150135] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.150155] ? calculate_sigpending+0x7b/0xa0 [ 12.150179] ? __pfx_kthread+0x10/0x10 [ 12.150205] ret_from_fork+0x116/0x1d0 [ 12.150223] ? __pfx_kthread+0x10/0x10 [ 12.150242] ret_from_fork_asm+0x1a/0x30 [ 12.150271] </TASK> [ 12.150281] [ 12.157607] Allocated by task 188: [ 12.157792] kasan_save_stack+0x45/0x70 [ 12.158028] kasan_save_track+0x18/0x40 [ 12.158165] kasan_save_alloc_info+0x3b/0x50 [ 12.158319] __kasan_kmalloc+0xb7/0xc0 [ 12.158449] __kmalloc_cache_noprof+0x189/0x420 [ 12.158683] kmalloc_oob_in_memset+0xac/0x320 [ 12.158891] kunit_try_run_case+0x1a5/0x480 [ 12.159090] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.159486] kthread+0x337/0x6f0 [ 12.159642] ret_from_fork+0x116/0x1d0 [ 12.159824] ret_from_fork_asm+0x1a/0x30 [ 12.159987] [ 12.160257] The buggy address belongs to the object at ffff8881027e4100 [ 12.160257] which belongs to the cache kmalloc-128 of size 128 [ 12.160688] The buggy address is located 0 bytes inside of [ 12.160688] allocated 120-byte region [ffff8881027e4100, ffff8881027e4178) [ 12.161431] [ 12.161542] The buggy address belongs to the physical page: [ 12.161763] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027e4 [ 12.162020] flags: 0x200000000000000(node=0|zone=2) [ 12.162345] page_type: f5(slab) [ 12.162480] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.162725] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.163050] page dumped because: kasan: bad access detected [ 12.163334] [ 12.163402] Memory state around the buggy address: [ 12.163682] ffff8881027e4000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.163998] ffff8881027e4080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.164296] >ffff8881027e4100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.164779] ^ [ 12.165041] ffff8881027e4180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.165447] ffff8881027e4200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.165693] ==================================================================