Date
June 23, 2025, 1:39 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.706512] ================================================================== [ 24.706983] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 24.707134] Write of size 2 at addr fff00000c63adf77 by task kunit_try_catch/174 [ 24.707481] [ 24.708557] CPU: 0 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT [ 24.709448] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.709539] Hardware name: linux,dummy-virt (DT) [ 24.709884] Call trace: [ 24.710153] show_stack+0x20/0x38 (C) [ 24.710299] dump_stack_lvl+0x8c/0xd0 [ 24.710441] print_report+0x118/0x608 [ 24.711311] kasan_report+0xdc/0x128 [ 24.711463] kasan_check_range+0x100/0x1a8 [ 24.711585] __asan_memset+0x34/0x78 [ 24.711731] kmalloc_oob_memset_2+0x150/0x2f8 [ 24.712009] kunit_try_run_case+0x170/0x3f0 [ 24.712202] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.712561] kthread+0x328/0x630 [ 24.712705] ret_from_fork+0x10/0x20 [ 24.712918] [ 24.712964] Allocated by task 174: [ 24.713155] kasan_save_stack+0x3c/0x68 [ 24.713365] kasan_save_track+0x20/0x40 [ 24.713478] kasan_save_alloc_info+0x40/0x58 [ 24.713587] __kasan_kmalloc+0xd4/0xd8 [ 24.713761] __kmalloc_cache_noprof+0x16c/0x3c0 [ 24.713878] kmalloc_oob_memset_2+0xb0/0x2f8 [ 24.713976] kunit_try_run_case+0x170/0x3f0 [ 24.714084] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.714418] kthread+0x328/0x630 [ 24.714521] ret_from_fork+0x10/0x20 [ 24.714810] [ 24.714867] The buggy address belongs to the object at fff00000c63adf00 [ 24.714867] which belongs to the cache kmalloc-128 of size 128 [ 24.715024] The buggy address is located 119 bytes inside of [ 24.715024] allocated 120-byte region [fff00000c63adf00, fff00000c63adf78) [ 24.715182] [ 24.715233] The buggy address belongs to the physical page: [ 24.715362] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063ad [ 24.715682] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.715870] page_type: f5(slab) [ 24.715963] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 24.716105] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.716201] page dumped because: kasan: bad access detected [ 24.716321] [ 24.716427] Memory state around the buggy address: [ 24.716508] fff00000c63ade00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.716660] fff00000c63ade80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.716802] >fff00000c63adf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 24.716898] ^ [ 24.716994] fff00000c63adf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.717104] fff00000c63ae000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.717240] ==================================================================
[ 17.264403] ================================================================== [ 17.265588] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 17.266737] Write of size 2 at addr ffff88810a06f577 by task kunit_try_catch/193 [ 17.267933] [ 17.268273] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT(voluntary) [ 17.268392] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.268429] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.268484] Call Trace: [ 17.268524] <TASK> [ 17.268567] dump_stack_lvl+0x73/0xb0 [ 17.268663] print_report+0xd1/0x650 [ 17.268739] ? __virt_addr_valid+0x1db/0x2d0 [ 17.268893] ? kmalloc_oob_memset_2+0x166/0x330 [ 17.268977] ? kasan_complete_mode_report_info+0x2a/0x200 [ 17.269054] ? kmalloc_oob_memset_2+0x166/0x330 [ 17.269127] kasan_report+0x141/0x180 [ 17.269164] ? kmalloc_oob_memset_2+0x166/0x330 [ 17.269204] kasan_check_range+0x10c/0x1c0 [ 17.269273] __asan_memset+0x27/0x50 [ 17.269305] kmalloc_oob_memset_2+0x166/0x330 [ 17.269339] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 17.269373] ? __schedule+0x10cc/0x2b60 [ 17.269403] ? __pfx_read_tsc+0x10/0x10 [ 17.269432] ? ktime_get_ts64+0x86/0x230 [ 17.269466] kunit_try_run_case+0x1a5/0x480 [ 17.269500] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.269531] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 17.269564] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 17.269599] ? __kthread_parkme+0x82/0x180 [ 17.269692] ? preempt_count_sub+0x50/0x80 [ 17.269749] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.269797] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.269830] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 17.269863] kthread+0x337/0x6f0 [ 17.269886] ? trace_preempt_on+0x20/0xc0 [ 17.269917] ? __pfx_kthread+0x10/0x10 [ 17.269941] ? _raw_spin_unlock_irq+0x47/0x80 [ 17.269970] ? calculate_sigpending+0x7b/0xa0 [ 17.269998] ? __pfx_kthread+0x10/0x10 [ 17.270022] ret_from_fork+0x41/0x80 [ 17.270051] ? __pfx_kthread+0x10/0x10 [ 17.270074] ret_from_fork_asm+0x1a/0x30 [ 17.270115] </TASK> [ 17.270129] [ 17.290453] Allocated by task 193: [ 17.291457] kasan_save_stack+0x45/0x70 [ 17.292143] kasan_save_track+0x18/0x40 [ 17.292493] kasan_save_alloc_info+0x3b/0x50 [ 17.293297] __kasan_kmalloc+0xb7/0xc0 [ 17.293578] __kmalloc_cache_noprof+0x189/0x420 [ 17.293989] kmalloc_oob_memset_2+0xac/0x330 [ 17.294357] kunit_try_run_case+0x1a5/0x480 [ 17.295141] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.295795] kthread+0x337/0x6f0 [ 17.296139] ret_from_fork+0x41/0x80 [ 17.296538] ret_from_fork_asm+0x1a/0x30 [ 17.297028] [ 17.297348] The buggy address belongs to the object at ffff88810a06f500 [ 17.297348] which belongs to the cache kmalloc-128 of size 128 [ 17.298728] The buggy address is located 119 bytes inside of [ 17.298728] allocated 120-byte region [ffff88810a06f500, ffff88810a06f578) [ 17.300102] [ 17.300335] The buggy address belongs to the physical page: [ 17.301058] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10a06f [ 17.301814] flags: 0x200000000000000(node=0|zone=2) [ 17.302397] page_type: f5(slab) [ 17.302929] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 17.303592] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.304364] page dumped because: kasan: bad access detected [ 17.305266] [ 17.305438] Memory state around the buggy address: [ 17.305955] ffff88810a06f400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.306787] ffff88810a06f480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.307498] >ffff88810a06f500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.308278] ^ [ 17.309026] ffff88810a06f580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.309734] ffff88810a06f600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.310331] ==================================================================