Date
July 19, 2025, 11:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.227900] ================================================================== [ 15.227968] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 15.228018] Write of size 8 at addr fff00000c6417a71 by task kunit_try_catch/176 [ 15.228066] [ 15.228162] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.228479] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.228506] Hardware name: linux,dummy-virt (DT) [ 15.228542] Call trace: [ 15.228625] show_stack+0x20/0x38 (C) [ 15.228671] dump_stack_lvl+0x8c/0xd0 [ 15.228754] print_report+0x118/0x5d0 [ 15.228800] kasan_report+0xdc/0x128 [ 15.228884] kasan_check_range+0x100/0x1a8 [ 15.229100] __asan_memset+0x34/0x78 [ 15.229142] kmalloc_oob_memset_8+0x150/0x2f8 [ 15.229187] kunit_try_run_case+0x170/0x3f0 [ 15.229234] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.229285] kthread+0x328/0x630 [ 15.229326] ret_from_fork+0x10/0x20 [ 15.229433] [ 15.229505] Allocated by task 176: [ 15.229539] kasan_save_stack+0x3c/0x68 [ 15.229640] kasan_save_track+0x20/0x40 [ 15.232226] kasan_save_alloc_info+0x40/0x58 [ 15.232612] __kasan_kmalloc+0xd4/0xd8 [ 15.232784] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.233255] kmalloc_oob_memset_8+0xb0/0x2f8 [ 15.233357] kunit_try_run_case+0x170/0x3f0 [ 15.233535] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.233644] kthread+0x328/0x630 [ 15.233772] ret_from_fork+0x10/0x20 [ 15.233871] [ 15.233975] The buggy address belongs to the object at fff00000c6417a00 [ 15.233975] which belongs to the cache kmalloc-128 of size 128 [ 15.234066] The buggy address is located 113 bytes inside of [ 15.234066] allocated 120-byte region [fff00000c6417a00, fff00000c6417a78) [ 15.234203] [ 15.234246] The buggy address belongs to the physical page: [ 15.234304] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106417 [ 15.234706] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.234816] page_type: f5(slab) [ 15.234870] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.235125] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.235258] page dumped because: kasan: bad access detected [ 15.235325] [ 15.235502] Memory state around the buggy address: [ 15.235545] fff00000c6417900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.236041] fff00000c6417980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.236263] >fff00000c6417a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.236370] ^ [ 15.236455] fff00000c6417a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.236561] fff00000c6417b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.236609] ==================================================================
[ 12.159899] ================================================================== [ 12.161158] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 12.161918] Write of size 8 at addr ffff8881027d6a71 by task kunit_try_catch/193 [ 12.162619] [ 12.162713] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.162757] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.162768] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.162788] Call Trace: [ 12.162799] <TASK> [ 12.162813] dump_stack_lvl+0x73/0xb0 [ 12.162842] print_report+0xd1/0x610 [ 12.162863] ? __virt_addr_valid+0x1db/0x2d0 [ 12.162884] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.162904] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.162924] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.162944] kasan_report+0x141/0x180 [ 12.162965] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.162990] kasan_check_range+0x10c/0x1c0 [ 12.163025] __asan_memset+0x27/0x50 [ 12.163044] kmalloc_oob_memset_8+0x166/0x330 [ 12.163065] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 12.163086] ? __schedule+0x10cc/0x2b60 [ 12.163107] ? __pfx_read_tsc+0x10/0x10 [ 12.163128] ? ktime_get_ts64+0x86/0x230 [ 12.163151] kunit_try_run_case+0x1a5/0x480 [ 12.163174] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.163196] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.163218] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.163240] ? __kthread_parkme+0x82/0x180 [ 12.163260] ? preempt_count_sub+0x50/0x80 [ 12.163283] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.163306] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.163328] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.163428] kthread+0x337/0x6f0 [ 12.163451] ? trace_preempt_on+0x20/0xc0 [ 12.163485] ? __pfx_kthread+0x10/0x10 [ 12.163504] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.163525] ? calculate_sigpending+0x7b/0xa0 [ 12.163558] ? __pfx_kthread+0x10/0x10 [ 12.163587] ret_from_fork+0x116/0x1d0 [ 12.163605] ? __pfx_kthread+0x10/0x10 [ 12.163625] ret_from_fork_asm+0x1a/0x30 [ 12.163664] </TASK> [ 12.163674] [ 12.176573] Allocated by task 193: [ 12.176920] kasan_save_stack+0x45/0x70 [ 12.177311] kasan_save_track+0x18/0x40 [ 12.177776] kasan_save_alloc_info+0x3b/0x50 [ 12.177967] __kasan_kmalloc+0xb7/0xc0 [ 12.178308] __kmalloc_cache_noprof+0x189/0x420 [ 12.178826] kmalloc_oob_memset_8+0xac/0x330 [ 12.178985] kunit_try_run_case+0x1a5/0x480 [ 12.179250] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.179799] kthread+0x337/0x6f0 [ 12.180133] ret_from_fork+0x116/0x1d0 [ 12.180280] ret_from_fork_asm+0x1a/0x30 [ 12.180740] [ 12.180905] The buggy address belongs to the object at ffff8881027d6a00 [ 12.180905] which belongs to the cache kmalloc-128 of size 128 [ 12.181611] The buggy address is located 113 bytes inside of [ 12.181611] allocated 120-byte region [ffff8881027d6a00, ffff8881027d6a78) [ 12.181978] [ 12.182087] The buggy address belongs to the physical page: [ 12.182334] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027d6 [ 12.182623] flags: 0x200000000000000(node=0|zone=2) [ 12.182882] page_type: f5(slab) [ 12.183088] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.183442] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.183763] page dumped because: kasan: bad access detected [ 12.184042] [ 12.184130] Memory state around the buggy address: [ 12.184360] ffff8881027d6900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.184701] ffff8881027d6980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.185030] >ffff8881027d6a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.185319] ^ [ 12.185753] ffff8881027d6a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.185974] ffff8881027d6b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.186321] ==================================================================