Date
July 9, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.686722] ================================================================== [ 16.687151] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 16.687225] Write of size 16 at addr fff00000c61bc3e0 by task kunit_try_catch/166 [ 16.687274] [ 16.687313] CPU: 1 UID: 0 PID: 166 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.687694] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.687780] Hardware name: linux,dummy-virt (DT) [ 16.687831] Call trace: [ 16.687854] show_stack+0x20/0x38 (C) [ 16.687997] dump_stack_lvl+0x8c/0xd0 [ 16.688046] print_report+0x118/0x608 [ 16.688092] kasan_report+0xdc/0x128 [ 16.688198] __asan_report_store16_noabort+0x20/0x30 [ 16.688246] kmalloc_oob_16+0x3a0/0x3f8 [ 16.688290] kunit_try_run_case+0x170/0x3f0 [ 16.688557] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.688638] kthread+0x328/0x630 [ 16.688882] ret_from_fork+0x10/0x20 [ 16.688958] [ 16.689015] Allocated by task 166: [ 16.689135] kasan_save_stack+0x3c/0x68 [ 16.689206] kasan_save_track+0x20/0x40 [ 16.689253] kasan_save_alloc_info+0x40/0x58 [ 16.689292] __kasan_kmalloc+0xd4/0xd8 [ 16.689326] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.689374] kmalloc_oob_16+0xb4/0x3f8 [ 16.689408] kunit_try_run_case+0x170/0x3f0 [ 16.689445] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.689807] kthread+0x328/0x630 [ 16.690552] ret_from_fork+0x10/0x20 [ 16.690676] [ 16.690722] The buggy address belongs to the object at fff00000c61bc3e0 [ 16.690722] which belongs to the cache kmalloc-16 of size 16 [ 16.690814] The buggy address is located 0 bytes inside of [ 16.690814] allocated 13-byte region [fff00000c61bc3e0, fff00000c61bc3ed) [ 16.690884] [ 16.690978] The buggy address belongs to the physical page: [ 16.691048] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1061bc [ 16.691102] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.691164] page_type: f5(slab) [ 16.691263] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 16.691518] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 16.691709] page dumped because: kasan: bad access detected [ 16.691803] [ 16.691822] Memory state around the buggy address: [ 16.691854] fff00000c61bc280: 00 02 fc fc 00 05 fc fc fa fb fc fc 00 02 fc fc [ 16.691895] fff00000c61bc300: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 16.691935] >fff00000c61bc380: fa fb fc fc 00 04 fc fc fa fb fc fc 00 05 fc fc [ 16.691993] ^ [ 16.692031] fff00000c61bc400: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.692092] fff00000c61bc480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.692204] ==================================================================
[ 12.560411] ================================================================== [ 12.560908] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 12.561974] Write of size 16 at addr ffff88810226cf80 by task kunit_try_catch/183 [ 12.562901] [ 12.563189] CPU: 1 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.563250] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.563262] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.563304] Call Trace: [ 12.563317] <TASK> [ 12.563334] dump_stack_lvl+0x73/0xb0 [ 12.563369] print_report+0xd1/0x650 [ 12.563412] ? __virt_addr_valid+0x1db/0x2d0 [ 12.563436] ? kmalloc_oob_16+0x452/0x4a0 [ 12.563457] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.563480] ? kmalloc_oob_16+0x452/0x4a0 [ 12.563501] kasan_report+0x141/0x180 [ 12.563524] ? kmalloc_oob_16+0x452/0x4a0 [ 12.563549] __asan_report_store16_noabort+0x1b/0x30 [ 12.563575] kmalloc_oob_16+0x452/0x4a0 [ 12.563596] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 12.563619] ? __schedule+0x10cc/0x2b60 [ 12.563641] ? __pfx_read_tsc+0x10/0x10 [ 12.563663] ? ktime_get_ts64+0x86/0x230 [ 12.563689] kunit_try_run_case+0x1a5/0x480 [ 12.563735] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.563759] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.563783] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.563818] ? __kthread_parkme+0x82/0x180 [ 12.563840] ? preempt_count_sub+0x50/0x80 [ 12.563864] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.563889] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.563914] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.563940] kthread+0x337/0x6f0 [ 12.563958] ? trace_preempt_on+0x20/0xc0 [ 12.563983] ? __pfx_kthread+0x10/0x10 [ 12.564004] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.564032] ? calculate_sigpending+0x7b/0xa0 [ 12.564056] ? __pfx_kthread+0x10/0x10 [ 12.564077] ret_from_fork+0x116/0x1d0 [ 12.564095] ? __pfx_kthread+0x10/0x10 [ 12.564116] ret_from_fork_asm+0x1a/0x30 [ 12.564147] </TASK> [ 12.564157] [ 12.574696] Allocated by task 183: [ 12.575105] kasan_save_stack+0x45/0x70 [ 12.575590] kasan_save_track+0x18/0x40 [ 12.575818] kasan_save_alloc_info+0x3b/0x50 [ 12.576116] __kasan_kmalloc+0xb7/0xc0 [ 12.576258] __kmalloc_cache_noprof+0x189/0x420 [ 12.576464] kmalloc_oob_16+0xa8/0x4a0 [ 12.576747] kunit_try_run_case+0x1a5/0x480 [ 12.576987] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.577353] kthread+0x337/0x6f0 [ 12.577501] ret_from_fork+0x116/0x1d0 [ 12.577720] ret_from_fork_asm+0x1a/0x30 [ 12.577949] [ 12.578221] The buggy address belongs to the object at ffff88810226cf80 [ 12.578221] which belongs to the cache kmalloc-16 of size 16 [ 12.578792] The buggy address is located 0 bytes inside of [ 12.578792] allocated 13-byte region [ffff88810226cf80, ffff88810226cf8d) [ 12.579487] [ 12.579600] The buggy address belongs to the physical page: [ 12.579885] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10226c [ 12.580311] flags: 0x200000000000000(node=0|zone=2) [ 12.580579] page_type: f5(slab) [ 12.580798] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 12.581194] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 12.581743] page dumped because: kasan: bad access detected [ 12.582170] [ 12.582275] Memory state around the buggy address: [ 12.582472] ffff88810226ce80: fa fb fc fc 00 04 fc fc 00 00 fc fc 00 04 fc fc [ 12.582826] ffff88810226cf00: 00 04 fc fc 00 00 fc fc fa fb fc fc fa fb fc fc [ 12.583168] >ffff88810226cf80: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc [ 12.583448] ^ [ 12.583815] ffff88810226d000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.584213] ffff88810226d080: fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb [ 12.584607] ==================================================================