Date
July 10, 2025, 6:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.915725] ================================================================== [ 16.916163] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 16.916524] Write of size 8 at addr fff00000c5a20271 by task kunit_try_catch/176 [ 16.916584] [ 16.916620] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.916701] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.916735] Hardware name: linux,dummy-virt (DT) [ 16.916774] Call trace: [ 16.916799] show_stack+0x20/0x38 (C) [ 16.916974] dump_stack_lvl+0x8c/0xd0 [ 16.917052] print_report+0x118/0x608 [ 16.917245] kasan_report+0xdc/0x128 [ 16.917550] kasan_check_range+0x100/0x1a8 [ 16.917622] __asan_memset+0x34/0x78 [ 16.917893] kmalloc_oob_memset_8+0x150/0x2f8 [ 16.918118] kunit_try_run_case+0x170/0x3f0 [ 16.918213] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.918266] kthread+0x328/0x630 [ 16.918554] ret_from_fork+0x10/0x20 [ 16.918753] [ 16.918951] Allocated by task 176: [ 16.919060] kasan_save_stack+0x3c/0x68 [ 16.919245] kasan_save_track+0x20/0x40 [ 16.919390] kasan_save_alloc_info+0x40/0x58 [ 16.919632] __kasan_kmalloc+0xd4/0xd8 [ 16.919870] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.920071] kmalloc_oob_memset_8+0xb0/0x2f8 [ 16.920250] kunit_try_run_case+0x170/0x3f0 [ 16.920625] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.920708] kthread+0x328/0x630 [ 16.920852] ret_from_fork+0x10/0x20 [ 16.920971] [ 16.920994] The buggy address belongs to the object at fff00000c5a20200 [ 16.920994] which belongs to the cache kmalloc-128 of size 128 [ 16.921093] The buggy address is located 113 bytes inside of [ 16.921093] allocated 120-byte region [fff00000c5a20200, fff00000c5a20278) [ 16.921454] [ 16.921725] The buggy address belongs to the physical page: [ 16.921799] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a20 [ 16.921871] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.921923] page_type: f5(slab) [ 16.922299] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.922551] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.922736] page dumped because: kasan: bad access detected [ 16.922791] [ 16.922873] Memory state around the buggy address: [ 16.922971] fff00000c5a20100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.923361] fff00000c5a20180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.923460] >fff00000c5a20200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.923547] ^ [ 16.923618] fff00000c5a20280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.923925] fff00000c5a20300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.924093] ==================================================================
[ 12.633789] ================================================================== [ 12.634701] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 12.635054] Write of size 8 at addr ffff888102791671 by task kunit_try_catch/193 [ 12.635493] [ 12.635629] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.635672] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.635683] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.635702] Call Trace: [ 12.635713] <TASK> [ 12.635727] dump_stack_lvl+0x73/0xb0 [ 12.635755] print_report+0xd1/0x650 [ 12.635797] ? __virt_addr_valid+0x1db/0x2d0 [ 12.635819] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.635840] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.635959] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.635988] kasan_report+0x141/0x180 [ 12.636012] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.636051] kasan_check_range+0x10c/0x1c0 [ 12.636075] __asan_memset+0x27/0x50 [ 12.636094] kmalloc_oob_memset_8+0x166/0x330 [ 12.636116] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 12.636140] ? __schedule+0x10cc/0x2b60 [ 12.636161] ? __pfx_read_tsc+0x10/0x10 [ 12.636182] ? ktime_get_ts64+0x86/0x230 [ 12.636205] kunit_try_run_case+0x1a5/0x480 [ 12.636229] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.636276] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.636301] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.636324] ? __kthread_parkme+0x82/0x180 [ 12.636345] ? preempt_count_sub+0x50/0x80 [ 12.636369] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.636394] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.636434] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.636459] kthread+0x337/0x6f0 [ 12.636477] ? trace_preempt_on+0x20/0xc0 [ 12.636500] ? __pfx_kthread+0x10/0x10 [ 12.636520] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.636541] ? calculate_sigpending+0x7b/0xa0 [ 12.636565] ? __pfx_kthread+0x10/0x10 [ 12.636586] ret_from_fork+0x116/0x1d0 [ 12.636604] ? __pfx_kthread+0x10/0x10 [ 12.636624] ret_from_fork_asm+0x1a/0x30 [ 12.636654] </TASK> [ 12.636664] [ 12.644543] Allocated by task 193: [ 12.644749] kasan_save_stack+0x45/0x70 [ 12.645151] kasan_save_track+0x18/0x40 [ 12.645321] kasan_save_alloc_info+0x3b/0x50 [ 12.645470] __kasan_kmalloc+0xb7/0xc0 [ 12.645602] __kmalloc_cache_noprof+0x189/0x420 [ 12.645770] kmalloc_oob_memset_8+0xac/0x330 [ 12.646007] kunit_try_run_case+0x1a5/0x480 [ 12.646346] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.646609] kthread+0x337/0x6f0 [ 12.646842] ret_from_fork+0x116/0x1d0 [ 12.647073] ret_from_fork_asm+0x1a/0x30 [ 12.647217] [ 12.647292] The buggy address belongs to the object at ffff888102791600 [ 12.647292] which belongs to the cache kmalloc-128 of size 128 [ 12.647867] The buggy address is located 113 bytes inside of [ 12.647867] allocated 120-byte region [ffff888102791600, ffff888102791678) [ 12.648654] [ 12.648800] The buggy address belongs to the physical page: [ 12.649076] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102791 [ 12.649422] flags: 0x200000000000000(node=0|zone=2) [ 12.649651] page_type: f5(slab) [ 12.649786] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.650016] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.650253] page dumped because: kasan: bad access detected [ 12.650570] [ 12.650688] Memory state around the buggy address: [ 12.651047] ffff888102791500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.651486] ffff888102791580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.651960] >ffff888102791600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.652305] ^ [ 12.652598] ffff888102791680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.652881] ffff888102791700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.653310] ==================================================================