Date
July 5, 2025, 5:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.321947] ================================================================== [ 18.322076] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 18.322127] Write of size 2 at addr fff00000c5cbbb77 by task kunit_try_catch/172 [ 18.322237] [ 18.322271] CPU: 1 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.322479] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.322517] Hardware name: linux,dummy-virt (DT) [ 18.322546] Call trace: [ 18.322731] show_stack+0x20/0x38 (C) [ 18.322929] dump_stack_lvl+0x8c/0xd0 [ 18.323093] print_report+0x118/0x608 [ 18.323284] kasan_report+0xdc/0x128 [ 18.323473] kasan_check_range+0x100/0x1a8 [ 18.323633] __asan_memset+0x34/0x78 [ 18.323723] kmalloc_oob_memset_2+0x150/0x2f8 [ 18.323796] kunit_try_run_case+0x170/0x3f0 [ 18.323841] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.324282] kthread+0x328/0x630 [ 18.324436] ret_from_fork+0x10/0x20 [ 18.324553] [ 18.324879] Allocated by task 172: [ 18.324994] kasan_save_stack+0x3c/0x68 [ 18.325246] kasan_save_track+0x20/0x40 [ 18.325340] kasan_save_alloc_info+0x40/0x58 [ 18.325382] __kasan_kmalloc+0xd4/0xd8 [ 18.325438] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.325482] kmalloc_oob_memset_2+0xb0/0x2f8 [ 18.325518] kunit_try_run_case+0x170/0x3f0 [ 18.325555] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.325597] kthread+0x328/0x630 [ 18.325633] ret_from_fork+0x10/0x20 [ 18.325670] [ 18.325690] The buggy address belongs to the object at fff00000c5cbbb00 [ 18.325690] which belongs to the cache kmalloc-128 of size 128 [ 18.325745] The buggy address is located 119 bytes inside of [ 18.325745] allocated 120-byte region [fff00000c5cbbb00, fff00000c5cbbb78) [ 18.325803] [ 18.325832] The buggy address belongs to the physical page: [ 18.325873] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105cbb [ 18.325931] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.325982] page_type: f5(slab) [ 18.326019] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.326076] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.326114] page dumped because: kasan: bad access detected [ 18.326158] [ 18.326177] Memory state around the buggy address: [ 18.326206] fff00000c5cbba00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.326257] fff00000c5cbba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.326299] >fff00000c5cbbb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.326344] ^ [ 18.326404] fff00000c5cbbb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.326446] fff00000c5cbbc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.326483] ==================================================================
[ 11.662169] ================================================================== [ 11.662764] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 11.663054] Write of size 2 at addr ffff8881031d4577 by task kunit_try_catch/190 [ 11.663404] [ 11.663535] CPU: 1 UID: 0 PID: 190 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.663577] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.663590] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.663610] Call Trace: [ 11.663623] <TASK> [ 11.663639] dump_stack_lvl+0x73/0xb0 [ 11.663668] print_report+0xd1/0x650 [ 11.663698] ? __virt_addr_valid+0x1db/0x2d0 [ 11.663722] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.663743] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.663764] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.663785] kasan_report+0x141/0x180 [ 11.663806] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.663832] kasan_check_range+0x10c/0x1c0 [ 11.663855] __asan_memset+0x27/0x50 [ 11.663874] kmalloc_oob_memset_2+0x166/0x330 [ 11.663895] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.663918] ? __schedule+0x10cc/0x2b60 [ 11.663939] ? __pfx_read_tsc+0x10/0x10 [ 11.663959] ? ktime_get_ts64+0x86/0x230 [ 11.663983] kunit_try_run_case+0x1a5/0x480 [ 11.664007] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.664028] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.664050] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.664072] ? __kthread_parkme+0x82/0x180 [ 11.664092] ? preempt_count_sub+0x50/0x80 [ 11.664115] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.664138] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.664159] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.664182] kthread+0x337/0x6f0 [ 11.664204] ? trace_preempt_on+0x20/0xc0 [ 11.664228] ? __pfx_kthread+0x10/0x10 [ 11.664249] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.664269] ? calculate_sigpending+0x7b/0xa0 [ 11.664291] ? __pfx_kthread+0x10/0x10 [ 11.664312] ret_from_fork+0x116/0x1d0 [ 11.664330] ? __pfx_kthread+0x10/0x10 [ 11.664349] ret_from_fork_asm+0x1a/0x30 [ 11.664379] </TASK> [ 11.664390] [ 11.671689] Allocated by task 190: [ 11.671960] kasan_save_stack+0x45/0x70 [ 11.672167] kasan_save_track+0x18/0x40 [ 11.672312] kasan_save_alloc_info+0x3b/0x50 [ 11.672471] __kasan_kmalloc+0xb7/0xc0 [ 11.672618] __kmalloc_cache_noprof+0x189/0x420 [ 11.672989] kmalloc_oob_memset_2+0xac/0x330 [ 11.673206] kunit_try_run_case+0x1a5/0x480 [ 11.673420] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.673669] kthread+0x337/0x6f0 [ 11.673823] ret_from_fork+0x116/0x1d0 [ 11.673957] ret_from_fork_asm+0x1a/0x30 [ 11.674096] [ 11.674194] The buggy address belongs to the object at ffff8881031d4500 [ 11.674194] which belongs to the cache kmalloc-128 of size 128 [ 11.674738] The buggy address is located 119 bytes inside of [ 11.674738] allocated 120-byte region [ffff8881031d4500, ffff8881031d4578) [ 11.675159] [ 11.675258] The buggy address belongs to the physical page: [ 11.675519] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1031d4 [ 11.675987] flags: 0x200000000000000(node=0|zone=2) [ 11.676195] page_type: f5(slab) [ 11.676348] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.676669] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.676946] page dumped because: kasan: bad access detected [ 11.677194] [ 11.677281] Memory state around the buggy address: [ 11.677535] ffff8881031d4400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.677869] ffff8881031d4480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.678083] >ffff8881031d4500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.678293] ^ [ 11.678516] ffff8881031d4580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.679239] ffff8881031d4600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.679833] ==================================================================