Date
July 10, 2025, 9:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.496573] ================================================================== [ 29.496627] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 29.496673] Write of size 8 at addr fff00000c9af0271 by task kunit_try_catch/207 [ 29.496731] [ 29.496873] CPU: 0 UID: 0 PID: 207 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250710 #1 PREEMPT [ 29.496958] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.496984] Hardware name: linux,dummy-virt (DT) [ 29.497013] Call trace: [ 29.497035] show_stack+0x20/0x38 (C) [ 29.497082] dump_stack_lvl+0x8c/0xd0 [ 29.497125] print_report+0x118/0x5d0 [ 29.497180] kasan_report+0xdc/0x128 [ 29.497221] kasan_check_range+0x100/0x1a8 [ 29.497265] __asan_memset+0x34/0x78 [ 29.497307] kmalloc_oob_memset_8+0x150/0x2f8 [ 29.497353] kunit_try_run_case+0x170/0x3f0 [ 29.497398] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.497450] kthread+0x328/0x630 [ 29.497490] ret_from_fork+0x10/0x20 [ 29.497535] [ 29.497553] Allocated by task 207: [ 29.497578] kasan_save_stack+0x3c/0x68 [ 29.497617] kasan_save_track+0x20/0x40 [ 29.497655] kasan_save_alloc_info+0x40/0x58 [ 29.497691] __kasan_kmalloc+0xd4/0xd8 [ 29.497727] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.497766] kmalloc_oob_memset_8+0xb0/0x2f8 [ 29.497804] kunit_try_run_case+0x170/0x3f0 [ 29.497860] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.497905] kthread+0x328/0x630 [ 29.497949] ret_from_fork+0x10/0x20 [ 29.497993] [ 29.498011] The buggy address belongs to the object at fff00000c9af0200 [ 29.498011] which belongs to the cache kmalloc-128 of size 128 [ 29.498103] The buggy address is located 113 bytes inside of [ 29.498103] allocated 120-byte region [fff00000c9af0200, fff00000c9af0278) [ 29.498175] [ 29.498217] The buggy address belongs to the physical page: [ 29.498247] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109af0 [ 29.498297] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.498342] page_type: f5(slab) [ 29.498387] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 29.498447] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.498566] page dumped because: kasan: bad access detected [ 29.498668] [ 29.498686] Memory state around the buggy address: [ 29.498722] fff00000c9af0100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.498824] fff00000c9af0180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.498903] >fff00000c9af0200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.498941] ^ [ 29.498999] fff00000c9af0280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.499068] fff00000c9af0300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.499107] ==================================================================
[ 25.175919] ================================================================== [ 25.176360] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 25.177101] Write of size 8 at addr ffff88810583a671 by task kunit_try_catch/224 [ 25.177848] [ 25.178031] CPU: 0 UID: 0 PID: 224 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250710 #1 PREEMPT(voluntary) [ 25.178082] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.178112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.178135] Call Trace: [ 25.178148] <TASK> [ 25.178166] dump_stack_lvl+0x73/0xb0 [ 25.178198] print_report+0xd1/0x610 [ 25.178222] ? __virt_addr_valid+0x1db/0x2d0 [ 25.178247] ? kmalloc_oob_memset_8+0x166/0x330 [ 25.178268] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.178293] ? kmalloc_oob_memset_8+0x166/0x330 [ 25.178315] kasan_report+0x141/0x180 [ 25.178337] ? kmalloc_oob_memset_8+0x166/0x330 [ 25.178363] kasan_check_range+0x10c/0x1c0 [ 25.178386] __asan_memset+0x27/0x50 [ 25.178409] kmalloc_oob_memset_8+0x166/0x330 [ 25.178431] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 25.178453] ? __schedule+0x10cc/0x2b60 [ 25.178483] ? __pfx_read_tsc+0x10/0x10 [ 25.178505] ? ktime_get_ts64+0x86/0x230 [ 25.178531] kunit_try_run_case+0x1a5/0x480 [ 25.178554] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.178574] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.178596] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.178618] ? __kthread_parkme+0x82/0x180 [ 25.178639] ? preempt_count_sub+0x50/0x80 [ 25.178662] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.178683] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.178717] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.178741] kthread+0x337/0x6f0 [ 25.178760] ? trace_preempt_on+0x20/0xc0 [ 25.178783] ? __pfx_kthread+0x10/0x10 [ 25.178803] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.178824] ? calculate_sigpending+0x7b/0xa0 [ 25.178848] ? __pfx_kthread+0x10/0x10 [ 25.178934] ret_from_fork+0x116/0x1d0 [ 25.178967] ? __pfx_kthread+0x10/0x10 [ 25.178990] ret_from_fork_asm+0x1a/0x30 [ 25.179021] </TASK> [ 25.179033] [ 25.190242] Allocated by task 224: [ 25.190681] kasan_save_stack+0x45/0x70 [ 25.191161] kasan_save_track+0x18/0x40 [ 25.191530] kasan_save_alloc_info+0x3b/0x50 [ 25.191898] __kasan_kmalloc+0xb7/0xc0 [ 25.192252] __kmalloc_cache_noprof+0x189/0x420 [ 25.192402] kmalloc_oob_memset_8+0xac/0x330 [ 25.192557] kunit_try_run_case+0x1a5/0x480 [ 25.192974] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.193524] kthread+0x337/0x6f0 [ 25.193902] ret_from_fork+0x116/0x1d0 [ 25.194065] ret_from_fork_asm+0x1a/0x30 [ 25.194311] [ 25.194486] The buggy address belongs to the object at ffff88810583a600 [ 25.194486] which belongs to the cache kmalloc-128 of size 128 [ 25.195603] The buggy address is located 113 bytes inside of [ 25.195603] allocated 120-byte region [ffff88810583a600, ffff88810583a678) [ 25.196527] [ 25.196601] The buggy address belongs to the physical page: [ 25.196778] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10583a [ 25.197517] flags: 0x200000000000000(node=0|zone=2) [ 25.198019] page_type: f5(slab) [ 25.198379] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 25.198913] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 25.199570] page dumped because: kasan: bad access detected [ 25.199750] [ 25.199856] Memory state around the buggy address: [ 25.200626] ffff88810583a500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.201407] ffff88810583a580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.202081] >ffff88810583a600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 25.202725] ^ [ 25.203230] ffff88810583a680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.203867] ffff88810583a700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.204319] ==================================================================