Date
July 4, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.081249] ================================================================== [ 18.081325] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 18.081394] Write of size 2 at addr fff00000c638eb77 by task kunit_try_catch/172 [ 18.081443] [ 18.081480] CPU: 0 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.081560] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.081596] Hardware name: linux,dummy-virt (DT) [ 18.081628] Call trace: [ 18.081650] show_stack+0x20/0x38 (C) [ 18.081708] dump_stack_lvl+0x8c/0xd0 [ 18.081756] print_report+0x118/0x608 [ 18.081801] kasan_report+0xdc/0x128 [ 18.082794] kasan_check_range+0x100/0x1a8 [ 18.082905] __asan_memset+0x34/0x78 [ 18.082978] kmalloc_oob_memset_2+0x150/0x2f8 [ 18.083052] kunit_try_run_case+0x170/0x3f0 [ 18.083098] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.083258] kthread+0x328/0x630 [ 18.083498] ret_from_fork+0x10/0x20 [ 18.083656] [ 18.083839] Allocated by task 172: [ 18.083910] kasan_save_stack+0x3c/0x68 [ 18.084357] kasan_save_track+0x20/0x40 [ 18.084531] kasan_save_alloc_info+0x40/0x58 [ 18.084787] __kasan_kmalloc+0xd4/0xd8 [ 18.084876] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.085030] kmalloc_oob_memset_2+0xb0/0x2f8 [ 18.085440] kunit_try_run_case+0x170/0x3f0 [ 18.085728] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.085859] kthread+0x328/0x630 [ 18.085938] ret_from_fork+0x10/0x20 [ 18.086266] [ 18.086396] The buggy address belongs to the object at fff00000c638eb00 [ 18.086396] which belongs to the cache kmalloc-128 of size 128 [ 18.086774] The buggy address is located 119 bytes inside of [ 18.086774] allocated 120-byte region [fff00000c638eb00, fff00000c638eb78) [ 18.086893] [ 18.086942] The buggy address belongs to the physical page: [ 18.086972] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10638e [ 18.087296] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.087670] page_type: f5(slab) [ 18.087736] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.088076] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.088149] page dumped because: kasan: bad access detected [ 18.088275] [ 18.088718] Memory state around the buggy address: [ 18.088849] fff00000c638ea00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.088992] fff00000c638ea80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.089074] >fff00000c638eb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.089435] ^ [ 18.089499] fff00000c638eb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.089690] fff00000c638ec00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.090150] ==================================================================
[ 11.972139] ================================================================== [ 11.973179] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 11.973871] Write of size 2 at addr ffff888102be6f77 by task kunit_try_catch/189 [ 11.974567] [ 11.974837] CPU: 1 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.974891] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.974913] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.974936] Call Trace: [ 11.974952] <TASK> [ 11.974971] dump_stack_lvl+0x73/0xb0 [ 11.975009] print_report+0xd1/0x650 [ 11.975033] ? __virt_addr_valid+0x1db/0x2d0 [ 11.975056] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.975077] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.975097] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.975118] kasan_report+0x141/0x180 [ 11.975138] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.975163] kasan_check_range+0x10c/0x1c0 [ 11.975186] __asan_memset+0x27/0x50 [ 11.975205] kmalloc_oob_memset_2+0x166/0x330 [ 11.975236] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.975363] ? __schedule+0x10cc/0x2b60 [ 11.975393] ? __pfx_read_tsc+0x10/0x10 [ 11.975495] ? ktime_get_ts64+0x86/0x230 [ 11.975576] kunit_try_run_case+0x1a5/0x480 [ 11.975602] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.975624] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.975647] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.975668] ? __kthread_parkme+0x82/0x180 [ 11.975688] ? preempt_count_sub+0x50/0x80 [ 11.975710] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.975732] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.975753] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.975774] kthread+0x337/0x6f0 [ 11.975792] ? trace_preempt_on+0x20/0xc0 [ 11.975815] ? __pfx_kthread+0x10/0x10 [ 11.975834] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.975853] ? calculate_sigpending+0x7b/0xa0 [ 11.975875] ? __pfx_kthread+0x10/0x10 [ 11.975895] ret_from_fork+0x116/0x1d0 [ 11.975914] ? __pfx_kthread+0x10/0x10 [ 11.975933] ret_from_fork_asm+0x1a/0x30 [ 11.975963] </TASK> [ 11.975974] [ 11.987122] Allocated by task 189: [ 11.987689] kasan_save_stack+0x45/0x70 [ 11.988157] kasan_save_track+0x18/0x40 [ 11.988996] kasan_save_alloc_info+0x3b/0x50 [ 11.989377] __kasan_kmalloc+0xb7/0xc0 [ 11.989545] __kmalloc_cache_noprof+0x189/0x420 [ 11.989709] kmalloc_oob_memset_2+0xac/0x330 [ 11.989865] kunit_try_run_case+0x1a5/0x480 [ 11.990056] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.991017] kthread+0x337/0x6f0 [ 11.991867] ret_from_fork+0x116/0x1d0 [ 11.992058] ret_from_fork_asm+0x1a/0x30 [ 11.992427] [ 11.992533] The buggy address belongs to the object at ffff888102be6f00 [ 11.992533] which belongs to the cache kmalloc-128 of size 128 [ 11.993189] The buggy address is located 119 bytes inside of [ 11.993189] allocated 120-byte region [ffff888102be6f00, ffff888102be6f78) [ 11.994320] [ 11.994434] The buggy address belongs to the physical page: [ 11.994886] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102be6 [ 11.995718] flags: 0x200000000000000(node=0|zone=2) [ 11.996179] page_type: f5(slab) [ 11.996629] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.997099] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.997678] page dumped because: kasan: bad access detected [ 11.997993] [ 11.998084] Memory state around the buggy address: [ 11.998548] ffff888102be6e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.999258] ffff888102be6e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.999834] >ffff888102be6f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.000331] ^ [ 12.000648] ffff888102be6f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.000961] ffff888102be7000: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 12.001519] ==================================================================