Date
June 23, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.011208] ================================================================== [ 33.011323] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 33.011441] Write of size 8 at addr fff00000c63f7271 by task kunit_try_catch/188 [ 33.011549] [ 33.011617] CPU: 1 UID: 0 PID: 188 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250623 #1 PREEMPT [ 33.011809] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.011869] Hardware name: linux,dummy-virt (DT) [ 33.011937] Call trace: [ 33.011991] show_stack+0x20/0x38 (C) [ 33.012189] dump_stack_lvl+0x8c/0xd0 [ 33.012671] print_report+0x118/0x608 [ 33.012806] kasan_report+0xdc/0x128 [ 33.012937] kasan_check_range+0x100/0x1a8 [ 33.013084] __asan_memset+0x34/0x78 [ 33.014505] kmalloc_oob_memset_8+0x150/0x2f8 [ 33.015607] kunit_try_run_case+0x170/0x3f0 [ 33.016141] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.016377] kthread+0x328/0x630 [ 33.016539] ret_from_fork+0x10/0x20 [ 33.016939] [ 33.016991] Allocated by task 188: [ 33.017089] kasan_save_stack+0x3c/0x68 [ 33.017191] kasan_save_track+0x20/0x40 [ 33.017285] kasan_save_alloc_info+0x40/0x58 [ 33.017922] __kasan_kmalloc+0xd4/0xd8 [ 33.018016] __kmalloc_cache_noprof+0x16c/0x3c0 [ 33.018210] kmalloc_oob_memset_8+0xb0/0x2f8 [ 33.018809] kunit_try_run_case+0x170/0x3f0 [ 33.019017] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.019336] kthread+0x328/0x630 [ 33.019418] ret_from_fork+0x10/0x20 [ 33.019503] [ 33.019550] The buggy address belongs to the object at fff00000c63f7200 [ 33.019550] which belongs to the cache kmalloc-128 of size 128 [ 33.019678] The buggy address is located 113 bytes inside of [ 33.019678] allocated 120-byte region [fff00000c63f7200, fff00000c63f7278) [ 33.019821] [ 33.020302] The buggy address belongs to the physical page: [ 33.020490] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063f7 [ 33.021586] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.021992] page_type: f5(slab) [ 33.022241] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 33.022681] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 33.022842] page dumped because: kasan: bad access detected [ 33.023281] [ 33.023355] Memory state around the buggy address: [ 33.023451] fff00000c63f7100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.023630] fff00000c63f7180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.024295] >fff00000c63f7200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 33.024438] ^ [ 33.024535] fff00000c63f7280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.024630] fff00000c63f7300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.024716] ==================================================================
[ 21.911353] ================================================================== [ 21.912301] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 21.912693] Write of size 8 at addr ffff8881023ac571 by task kunit_try_catch/205 [ 21.913391] [ 21.913868] CPU: 0 UID: 0 PID: 205 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250623 #1 PREEMPT(voluntary) [ 21.914028] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.914061] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 21.914099] Call Trace: [ 21.914128] <TASK> [ 21.914156] dump_stack_lvl+0x73/0xb0 [ 21.914193] print_report+0xd1/0x650 [ 21.914212] ? __virt_addr_valid+0x1db/0x2d0 [ 21.914232] ? kmalloc_oob_memset_8+0x166/0x330 [ 21.914250] ? kasan_complete_mode_report_info+0x2a/0x200 [ 21.914272] ? kmalloc_oob_memset_8+0x166/0x330 [ 21.914290] kasan_report+0x141/0x180 [ 21.914308] ? kmalloc_oob_memset_8+0x166/0x330 [ 21.914331] kasan_check_range+0x10c/0x1c0 [ 21.914351] __asan_memset+0x27/0x50 [ 21.914370] kmalloc_oob_memset_8+0x166/0x330 [ 21.914409] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 21.914429] ? __schedule+0x10cc/0x2b60 [ 21.914448] ? __pfx_read_tsc+0x10/0x10 [ 21.914468] ? ktime_get_ts64+0x86/0x230 [ 21.914490] kunit_try_run_case+0x1a5/0x480 [ 21.914512] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.914531] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 21.914550] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 21.914569] ? __kthread_parkme+0x82/0x180 [ 21.914586] ? preempt_count_sub+0x50/0x80 [ 21.914606] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.914626] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.914646] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 21.914666] kthread+0x337/0x6f0 [ 21.914682] ? trace_preempt_on+0x20/0xc0 [ 21.914702] ? __pfx_kthread+0x10/0x10 [ 21.914719] ? _raw_spin_unlock_irq+0x47/0x80 [ 21.914736] ? calculate_sigpending+0x7b/0xa0 [ 21.914756] ? __pfx_kthread+0x10/0x10 [ 21.914774] ret_from_fork+0x116/0x1d0 [ 21.914790] ? __pfx_kthread+0x10/0x10 [ 21.914807] ret_from_fork_asm+0x1a/0x30 [ 21.914853] </TASK> [ 21.914867] [ 21.924738] Allocated by task 205: [ 21.925485] kasan_save_stack+0x45/0x70 [ 21.925803] kasan_save_track+0x18/0x40 [ 21.926283] kasan_save_alloc_info+0x3b/0x50 [ 21.926600] __kasan_kmalloc+0xb7/0xc0 [ 21.926811] __kmalloc_cache_noprof+0x189/0x420 [ 21.927480] kmalloc_oob_memset_8+0xac/0x330 [ 21.927679] kunit_try_run_case+0x1a5/0x480 [ 21.927811] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.928309] kthread+0x337/0x6f0 [ 21.928475] ret_from_fork+0x116/0x1d0 [ 21.928823] ret_from_fork_asm+0x1a/0x30 [ 21.929153] [ 21.929447] The buggy address belongs to the object at ffff8881023ac500 [ 21.929447] which belongs to the cache kmalloc-128 of size 128 [ 21.930317] The buggy address is located 113 bytes inside of [ 21.930317] allocated 120-byte region [ffff8881023ac500, ffff8881023ac578) [ 21.930749] [ 21.931010] The buggy address belongs to the physical page: [ 21.931474] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1023ac [ 21.931791] flags: 0x200000000000000(node=0|zone=2) [ 21.932220] page_type: f5(slab) [ 21.932596] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 21.932850] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.933755] page dumped because: kasan: bad access detected [ 21.934144] [ 21.934247] Memory state around the buggy address: [ 21.934417] ffff8881023ac400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.935187] ffff8881023ac480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.935484] >ffff8881023ac500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 21.935762] ^ [ 21.936754] ffff8881023ac580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.937113] ffff8881023ac600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.937437] ==================================================================