Date
July 17, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.409748] ================================================================== [ 15.409863] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 15.409914] Write of size 8 at addr fff00000c786a571 by task kunit_try_catch/177 [ 15.410000] [ 15.410354] CPU: 0 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.410453] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.410479] Hardware name: linux,dummy-virt (DT) [ 15.410607] Call trace: [ 15.410633] show_stack+0x20/0x38 (C) [ 15.410687] dump_stack_lvl+0x8c/0xd0 [ 15.410732] print_report+0x118/0x5d0 [ 15.410902] kasan_report+0xdc/0x128 [ 15.410949] kasan_check_range+0x100/0x1a8 [ 15.411140] __asan_memset+0x34/0x78 [ 15.411196] kmalloc_oob_memset_8+0x150/0x2f8 [ 15.411395] kunit_try_run_case+0x170/0x3f0 [ 15.411520] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.411615] kthread+0x328/0x630 [ 15.411658] ret_from_fork+0x10/0x20 [ 15.411711] [ 15.411729] Allocated by task 177: [ 15.411756] kasan_save_stack+0x3c/0x68 [ 15.411871] kasan_save_track+0x20/0x40 [ 15.411911] kasan_save_alloc_info+0x40/0x58 [ 15.411950] __kasan_kmalloc+0xd4/0xd8 [ 15.412325] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.412386] kmalloc_oob_memset_8+0xb0/0x2f8 [ 15.412423] kunit_try_run_case+0x170/0x3f0 [ 15.412478] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.412522] kthread+0x328/0x630 [ 15.412590] ret_from_fork+0x10/0x20 [ 15.412720] [ 15.412790] The buggy address belongs to the object at fff00000c786a500 [ 15.412790] which belongs to the cache kmalloc-128 of size 128 [ 15.412917] The buggy address is located 113 bytes inside of [ 15.412917] allocated 120-byte region [fff00000c786a500, fff00000c786a578) [ 15.413163] [ 15.413257] The buggy address belongs to the physical page: [ 15.413519] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10786a [ 15.413635] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.413769] page_type: f5(slab) [ 15.414041] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.414489] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.414560] page dumped because: kasan: bad access detected [ 15.414666] [ 15.414684] Memory state around the buggy address: [ 15.414970] fff00000c786a400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.415143] fff00000c786a480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.415253] >fff00000c786a500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.415405] ^ [ 15.415486] fff00000c786a580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.415626] fff00000c786a600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.415762] ==================================================================
[ 13.193621] ================================================================== [ 13.194316] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 13.194686] Write of size 8 at addr ffff888102a04871 by task kunit_try_catch/193 [ 13.195023] [ 13.195788] CPU: 0 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.195838] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.195850] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.195872] Call Trace: [ 13.195885] <TASK> [ 13.195901] dump_stack_lvl+0x73/0xb0 [ 13.196548] print_report+0xd1/0x610 [ 13.196589] ? __virt_addr_valid+0x1db/0x2d0 [ 13.196613] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.196635] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.196659] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.196682] kasan_report+0x141/0x180 [ 13.196704] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.196731] kasan_check_range+0x10c/0x1c0 [ 13.196756] __asan_memset+0x27/0x50 [ 13.196776] kmalloc_oob_memset_8+0x166/0x330 [ 13.196798] ? __kasan_check_write+0x18/0x20 [ 13.196818] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 13.196841] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 13.196868] ? trace_hardirqs_on+0x37/0xe0 [ 13.196892] ? __pfx_read_tsc+0x10/0x10 [ 13.196914] ? ktime_get_ts64+0x86/0x230 [ 13.196939] kunit_try_run_case+0x1a5/0x480 [ 13.196965] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.196991] ? queued_spin_lock_slowpath+0x116/0xb40 [ 13.197016] ? __kthread_parkme+0x82/0x180 [ 13.197038] ? preempt_count_sub+0x50/0x80 [ 13.197063] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.197088] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.197113] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.197139] kthread+0x337/0x6f0 [ 13.197158] ? trace_preempt_on+0x20/0xc0 [ 13.197180] ? __pfx_kthread+0x10/0x10 [ 13.197201] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.197895] ? calculate_sigpending+0x7b/0xa0 [ 13.197934] ? __pfx_kthread+0x10/0x10 [ 13.197956] ret_from_fork+0x116/0x1d0 [ 13.197978] ? __pfx_kthread+0x10/0x10 [ 13.197999] ret_from_fork_asm+0x1a/0x30 [ 13.198031] </TASK> [ 13.198043] [ 13.206828] Allocated by task 193: [ 13.207036] kasan_save_stack+0x45/0x70 [ 13.207386] kasan_save_track+0x18/0x40 [ 13.207628] kasan_save_alloc_info+0x3b/0x50 [ 13.207840] __kasan_kmalloc+0xb7/0xc0 [ 13.208048] __kmalloc_cache_noprof+0x189/0x420 [ 13.208269] kmalloc_oob_memset_8+0xac/0x330 [ 13.208623] kunit_try_run_case+0x1a5/0x480 [ 13.208843] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.209058] kthread+0x337/0x6f0 [ 13.209183] ret_from_fork+0x116/0x1d0 [ 13.209495] ret_from_fork_asm+0x1a/0x30 [ 13.209712] [ 13.209811] The buggy address belongs to the object at ffff888102a04800 [ 13.209811] which belongs to the cache kmalloc-128 of size 128 [ 13.210385] The buggy address is located 113 bytes inside of [ 13.210385] allocated 120-byte region [ffff888102a04800, ffff888102a04878) [ 13.210896] [ 13.210994] The buggy address belongs to the physical page: [ 13.211428] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a04 [ 13.211783] flags: 0x200000000000000(node=0|zone=2) [ 13.212023] page_type: f5(slab) [ 13.212182] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.212578] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.212929] page dumped because: kasan: bad access detected [ 13.213179] [ 13.213361] Memory state around the buggy address: [ 13.213570] ffff888102a04700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.213891] ffff888102a04780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.214118] >ffff888102a04800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.214541] ^ [ 13.214891] ffff888102a04880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.215436] ffff888102a04900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.215832] ==================================================================