Date
July 8, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.165833] ================================================================== [ 31.165890] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 31.165944] Write of size 4 at addr fff00000c9a9c475 by task kunit_try_catch/205 [ 31.166001] [ 31.166040] CPU: 0 UID: 0 PID: 205 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250708 #1 PREEMPT [ 31.166129] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.166155] Hardware name: linux,dummy-virt (DT) [ 31.166185] Call trace: [ 31.166220] show_stack+0x20/0x38 (C) [ 31.166267] dump_stack_lvl+0x8c/0xd0 [ 31.166314] print_report+0x118/0x5d0 [ 31.166366] kasan_report+0xdc/0x128 [ 31.166411] kasan_check_range+0x100/0x1a8 [ 31.166456] __asan_memset+0x34/0x78 [ 31.166502] kmalloc_oob_memset_4+0x150/0x300 [ 31.166741] kunit_try_run_case+0x170/0x3f0 [ 31.166799] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.166854] kthread+0x328/0x630 [ 31.166909] ret_from_fork+0x10/0x20 [ 31.166957] [ 31.166975] Allocated by task 205: [ 31.167002] kasan_save_stack+0x3c/0x68 [ 31.167052] kasan_save_track+0x20/0x40 [ 31.167090] kasan_save_alloc_info+0x40/0x58 [ 31.167127] __kasan_kmalloc+0xd4/0xd8 [ 31.167165] __kmalloc_cache_noprof+0x16c/0x3c0 [ 31.167203] kmalloc_oob_memset_4+0xb0/0x300 [ 31.167334] kunit_try_run_case+0x170/0x3f0 [ 31.167374] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.167531] kthread+0x328/0x630 [ 31.167576] ret_from_fork+0x10/0x20 [ 31.167629] [ 31.167658] The buggy address belongs to the object at fff00000c9a9c400 [ 31.167658] which belongs to the cache kmalloc-128 of size 128 [ 31.167740] The buggy address is located 117 bytes inside of [ 31.167740] allocated 120-byte region [fff00000c9a9c400, fff00000c9a9c478) [ 31.167809] [ 31.167838] The buggy address belongs to the physical page: [ 31.167876] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109a9c [ 31.167927] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.167973] page_type: f5(slab) [ 31.168009] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 31.168056] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 31.168094] page dumped because: kasan: bad access detected [ 31.168132] [ 31.168150] Memory state around the buggy address: [ 31.168224] fff00000c9a9c300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.168272] fff00000c9a9c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.168328] >fff00000c9a9c400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 31.168365] ^ [ 31.168410] fff00000c9a9c480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.168581] fff00000c9a9c500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.168807] ==================================================================
[ 23.443647] ================================================================== [ 23.444185] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 23.444525] Write of size 4 at addr ffff88810595dd75 by task kunit_try_catch/222 [ 23.445114] [ 23.445221] CPU: 1 UID: 0 PID: 222 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250708 #1 PREEMPT(voluntary) [ 23.445287] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.445300] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.445323] Call Trace: [ 23.445337] <TASK> [ 23.445360] dump_stack_lvl+0x73/0xb0 [ 23.445395] print_report+0xd1/0x610 [ 23.445419] ? __virt_addr_valid+0x1db/0x2d0 [ 23.445447] ? kmalloc_oob_memset_4+0x166/0x330 [ 23.445469] ? kasan_complete_mode_report_info+0x2a/0x200 [ 23.445497] ? kmalloc_oob_memset_4+0x166/0x330 [ 23.445519] kasan_report+0x141/0x180 [ 23.445542] ? kmalloc_oob_memset_4+0x166/0x330 [ 23.445568] kasan_check_range+0x10c/0x1c0 [ 23.445593] __asan_memset+0x27/0x50 [ 23.445619] kmalloc_oob_memset_4+0x166/0x330 [ 23.445642] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 23.445664] ? __schedule+0x10cc/0x2b60 [ 23.445694] ? __pfx_read_tsc+0x10/0x10 [ 23.445719] ? ktime_get_ts64+0x86/0x230 [ 23.445747] kunit_try_run_case+0x1a5/0x480 [ 23.445771] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.445791] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 23.445813] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.445870] ? __kthread_parkme+0x82/0x180 [ 23.445960] ? preempt_count_sub+0x50/0x80 [ 23.445986] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.446008] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.446037] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.446064] kthread+0x337/0x6f0 [ 23.446085] ? trace_preempt_on+0x20/0xc0 [ 23.446111] ? __pfx_kthread+0x10/0x10 [ 23.446133] ? _raw_spin_unlock_irq+0x47/0x80 [ 23.446160] ? calculate_sigpending+0x7b/0xa0 [ 23.446188] ? __pfx_kthread+0x10/0x10 [ 23.446211] ret_from_fork+0x116/0x1d0 [ 23.446231] ? __pfx_kthread+0x10/0x10 [ 23.446263] ret_from_fork_asm+0x1a/0x30 [ 23.446298] </TASK> [ 23.446309] [ 23.456735] Allocated by task 222: [ 23.457445] kasan_save_stack+0x45/0x70 [ 23.457735] kasan_save_track+0x18/0x40 [ 23.458336] kasan_save_alloc_info+0x3b/0x50 [ 23.458664] __kasan_kmalloc+0xb7/0xc0 [ 23.459267] __kmalloc_cache_noprof+0x189/0x420 [ 23.459495] kmalloc_oob_memset_4+0xac/0x330 [ 23.459689] kunit_try_run_case+0x1a5/0x480 [ 23.460216] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.460548] kthread+0x337/0x6f0 [ 23.460993] ret_from_fork+0x116/0x1d0 [ 23.461353] ret_from_fork_asm+0x1a/0x30 [ 23.461555] [ 23.461641] The buggy address belongs to the object at ffff88810595dd00 [ 23.461641] which belongs to the cache kmalloc-128 of size 128 [ 23.462840] The buggy address is located 117 bytes inside of [ 23.462840] allocated 120-byte region [ffff88810595dd00, ffff88810595dd78) [ 23.463951] [ 23.464054] The buggy address belongs to the physical page: [ 23.464470] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10595d [ 23.465166] flags: 0x200000000000000(node=0|zone=2) [ 23.465541] page_type: f5(slab) [ 23.465710] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 23.466504] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.467152] page dumped because: kasan: bad access detected [ 23.467400] [ 23.467487] Memory state around the buggy address: [ 23.467687] ffff88810595dc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.468589] ffff88810595dc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.469182] >ffff88810595dd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 23.469630] ^ [ 23.470154] ffff88810595dd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.470456] ffff88810595de00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.471034] ==================================================================