Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.330085] ================================================================== [ 15.330157] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 15.330208] Write of size 16 at addr fff00000c3fc6160 by task kunit_try_catch/166 [ 15.330286] [ 15.330316] CPU: 0 UID: 0 PID: 166 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.330393] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.330419] Hardware name: linux,dummy-virt (DT) [ 15.330450] Call trace: [ 15.330491] show_stack+0x20/0x38 (C) [ 15.330538] dump_stack_lvl+0x8c/0xd0 [ 15.330591] print_report+0x118/0x5d0 [ 15.330637] kasan_report+0xdc/0x128 [ 15.330912] __asan_report_store16_noabort+0x20/0x30 [ 15.331017] kmalloc_oob_16+0x3a0/0x3f8 [ 15.331111] kunit_try_run_case+0x170/0x3f0 [ 15.331157] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.331207] kthread+0x328/0x630 [ 15.331248] ret_from_fork+0x10/0x20 [ 15.331333] [ 15.331352] Allocated by task 166: [ 15.331564] kasan_save_stack+0x3c/0x68 [ 15.331621] kasan_save_track+0x20/0x40 [ 15.331657] kasan_save_alloc_info+0x40/0x58 [ 15.331820] __kasan_kmalloc+0xd4/0xd8 [ 15.331912] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.332030] kmalloc_oob_16+0xb4/0x3f8 [ 15.332159] kunit_try_run_case+0x170/0x3f0 [ 15.332247] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.332375] kthread+0x328/0x630 [ 15.332518] ret_from_fork+0x10/0x20 [ 15.332607] [ 15.334686] The buggy address belongs to the object at fff00000c3fc6160 [ 15.334686] which belongs to the cache kmalloc-16 of size 16 [ 15.334744] The buggy address is located 0 bytes inside of [ 15.334744] allocated 13-byte region [fff00000c3fc6160, fff00000c3fc616d) [ 15.334803] [ 15.334822] The buggy address belongs to the physical page: [ 15.334852] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103fc6 [ 15.334901] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.334947] page_type: f5(slab) [ 15.334984] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 15.335039] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 15.335079] page dumped because: kasan: bad access detected [ 15.335109] [ 15.335126] Memory state around the buggy address: [ 15.335155] fff00000c3fc6000: 00 05 fc fc 00 00 fc fc 00 06 fc fc 00 06 fc fc [ 15.335196] fff00000c3fc6080: 00 00 fc fc 00 02 fc fc 00 02 fc fc 00 06 fc fc [ 15.335236] >fff00000c3fc6100: 00 06 fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 15.335272] ^ [ 15.335310] fff00000c3fc6180: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.335349] fff00000c3fc6200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.335386] ==================================================================
[ 12.273960] ================================================================== [ 12.274481] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 12.274778] Write of size 16 at addr ffff888101d1f4e0 by task kunit_try_catch/183 [ 12.275115] [ 12.275239] CPU: 0 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.275283] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.275294] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.275313] Call Trace: [ 12.275325] <TASK> [ 12.275340] dump_stack_lvl+0x73/0xb0 [ 12.275418] print_report+0xd1/0x610 [ 12.275441] ? __virt_addr_valid+0x1db/0x2d0 [ 12.275462] ? kmalloc_oob_16+0x452/0x4a0 [ 12.275481] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.275501] ? kmalloc_oob_16+0x452/0x4a0 [ 12.275521] kasan_report+0x141/0x180 [ 12.275541] ? kmalloc_oob_16+0x452/0x4a0 [ 12.275565] __asan_report_store16_noabort+0x1b/0x30 [ 12.275588] kmalloc_oob_16+0x452/0x4a0 [ 12.275608] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 12.275629] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 12.275653] ? __pfx_read_tsc+0x10/0x10 [ 12.275672] ? ktime_get_ts64+0x86/0x230 [ 12.275705] kunit_try_run_case+0x1a5/0x480 [ 12.275727] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.275748] ? _raw_spin_lock_irqsave+0xf9/0x100 [ 12.275769] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.275790] ? __kthread_parkme+0x82/0x180 [ 12.275809] ? preempt_count_sub+0x50/0x80 [ 12.275831] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.275853] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.275876] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.275897] kthread+0x337/0x6f0 [ 12.275929] ? trace_preempt_on+0x20/0xc0 [ 12.275950] ? __pfx_kthread+0x10/0x10 [ 12.275969] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.275989] ? calculate_sigpending+0x7b/0xa0 [ 12.276011] ? __pfx_kthread+0x10/0x10 [ 12.276031] ret_from_fork+0x116/0x1d0 [ 12.276048] ? __pfx_kthread+0x10/0x10 [ 12.276067] ret_from_fork_asm+0x1a/0x30 [ 12.276096] </TASK> [ 12.276106] [ 12.283347] Allocated by task 183: [ 12.283511] kasan_save_stack+0x45/0x70 [ 12.283736] kasan_save_track+0x18/0x40 [ 12.283891] kasan_save_alloc_info+0x3b/0x50 [ 12.284051] __kasan_kmalloc+0xb7/0xc0 [ 12.284182] __kmalloc_cache_noprof+0x189/0x420 [ 12.284349] kmalloc_oob_16+0xa8/0x4a0 [ 12.284573] kunit_try_run_case+0x1a5/0x480 [ 12.284870] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.285129] kthread+0x337/0x6f0 [ 12.285297] ret_from_fork+0x116/0x1d0 [ 12.285477] ret_from_fork_asm+0x1a/0x30 [ 12.285620] [ 12.285691] The buggy address belongs to the object at ffff888101d1f4e0 [ 12.285691] which belongs to the cache kmalloc-16 of size 16 [ 12.286110] The buggy address is located 0 bytes inside of [ 12.286110] allocated 13-byte region [ffff888101d1f4e0, ffff888101d1f4ed) [ 12.286676] [ 12.286966] The buggy address belongs to the physical page: [ 12.287207] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101d1f [ 12.288554] flags: 0x200000000000000(node=0|zone=2) [ 12.288866] page_type: f5(slab) [ 12.289006] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 12.289301] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 12.290169] page dumped because: kasan: bad access detected [ 12.290707] [ 12.290820] Memory state around the buggy address: [ 12.291275] ffff888101d1f380: fa fb fc fc 00 02 fc fc 00 05 fc fc 00 02 fc fc [ 12.291736] ffff888101d1f400: 00 02 fc fc 00 02 fc fc 00 02 fc fc fa fb fc fc [ 12.292275] >ffff888101d1f480: fa fb fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 12.292778] ^ [ 12.293068] ffff888101d1f500: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.293657] ffff888101d1f580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.294259] ==================================================================