Date
July 5, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.094436] ================================================================== [ 18.094497] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 18.094545] Write of size 8 at addr fff00000c3ec0471 by task kunit_try_catch/176 [ 18.094591] [ 18.094766] CPU: 0 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.094853] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.094948] Hardware name: linux,dummy-virt (DT) [ 18.095000] Call trace: [ 18.095048] show_stack+0x20/0x38 (C) [ 18.095097] dump_stack_lvl+0x8c/0xd0 [ 18.095167] print_report+0x118/0x608 [ 18.095243] kasan_report+0xdc/0x128 [ 18.095318] kasan_check_range+0x100/0x1a8 [ 18.095403] __asan_memset+0x34/0x78 [ 18.095446] kmalloc_oob_memset_8+0x150/0x2f8 [ 18.095505] kunit_try_run_case+0x170/0x3f0 [ 18.095570] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.095622] kthread+0x328/0x630 [ 18.095661] ret_from_fork+0x10/0x20 [ 18.095888] [ 18.095923] Allocated by task 176: [ 18.096030] kasan_save_stack+0x3c/0x68 [ 18.096072] kasan_save_track+0x20/0x40 [ 18.096134] kasan_save_alloc_info+0x40/0x58 [ 18.096187] __kasan_kmalloc+0xd4/0xd8 [ 18.096223] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.096260] kmalloc_oob_memset_8+0xb0/0x2f8 [ 18.096296] kunit_try_run_case+0x170/0x3f0 [ 18.096332] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.096373] kthread+0x328/0x630 [ 18.096578] ret_from_fork+0x10/0x20 [ 18.096663] [ 18.096742] The buggy address belongs to the object at fff00000c3ec0400 [ 18.096742] which belongs to the cache kmalloc-128 of size 128 [ 18.096861] The buggy address is located 113 bytes inside of [ 18.096861] allocated 120-byte region [fff00000c3ec0400, fff00000c3ec0478) [ 18.097019] [ 18.097054] The buggy address belongs to the physical page: [ 18.097084] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103ec0 [ 18.097145] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.097230] page_type: f5(slab) [ 18.097273] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.097340] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.097493] page dumped because: kasan: bad access detected [ 18.097629] [ 18.097696] Memory state around the buggy address: [ 18.097726] fff00000c3ec0300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.097766] fff00000c3ec0380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.097805] >fff00000c3ec0400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.097841] ^ [ 18.097882] fff00000c3ec0480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.098075] fff00000c3ec0500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.098134] ==================================================================
[ 13.714289] ================================================================== [ 13.715586] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 13.716106] Write of size 8 at addr ffff8881029f9171 by task kunit_try_catch/194 [ 13.716359] [ 13.716465] CPU: 1 UID: 0 PID: 194 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.716517] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.716531] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.716555] Call Trace: [ 13.716570] <TASK> [ 13.716591] dump_stack_lvl+0x73/0xb0 [ 13.716628] print_report+0xd1/0x650 [ 13.716654] ? __virt_addr_valid+0x1db/0x2d0 [ 13.716681] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.716706] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.716732] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.716756] kasan_report+0x141/0x180 [ 13.716781] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.716825] kasan_check_range+0x10c/0x1c0 [ 13.716851] __asan_memset+0x27/0x50 [ 13.716873] kmalloc_oob_memset_8+0x166/0x330 [ 13.716898] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 13.716923] ? __schedule+0x10cc/0x2b60 [ 13.716949] ? __pfx_read_tsc+0x10/0x10 [ 13.716973] ? ktime_get_ts64+0x86/0x230 [ 13.716999] kunit_try_run_case+0x1a5/0x480 [ 13.717027] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.717053] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.717080] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.717106] ? __kthread_parkme+0x82/0x180 [ 13.717130] ? preempt_count_sub+0x50/0x80 [ 13.717157] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.717196] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.717221] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.717247] kthread+0x337/0x6f0 [ 13.717283] ? trace_preempt_on+0x20/0xc0 [ 13.717310] ? __pfx_kthread+0x10/0x10 [ 13.717341] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.717366] ? calculate_sigpending+0x7b/0xa0 [ 13.717393] ? __pfx_kthread+0x10/0x10 [ 13.717416] ret_from_fork+0x116/0x1d0 [ 13.717437] ? __pfx_kthread+0x10/0x10 [ 13.717460] ret_from_fork_asm+0x1a/0x30 [ 13.717497] </TASK> [ 13.717510] [ 13.728940] Allocated by task 194: [ 13.729128] kasan_save_stack+0x45/0x70 [ 13.729362] kasan_save_track+0x18/0x40 [ 13.729569] kasan_save_alloc_info+0x3b/0x50 [ 13.730042] __kasan_kmalloc+0xb7/0xc0 [ 13.730289] __kmalloc_cache_noprof+0x189/0x420 [ 13.730473] kmalloc_oob_memset_8+0xac/0x330 [ 13.730660] kunit_try_run_case+0x1a5/0x480 [ 13.730924] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.731355] kthread+0x337/0x6f0 [ 13.732145] ret_from_fork+0x116/0x1d0 [ 13.732382] ret_from_fork_asm+0x1a/0x30 [ 13.732558] [ 13.732646] The buggy address belongs to the object at ffff8881029f9100 [ 13.732646] which belongs to the cache kmalloc-128 of size 128 [ 13.733069] The buggy address is located 113 bytes inside of [ 13.733069] allocated 120-byte region [ffff8881029f9100, ffff8881029f9178) [ 13.733699] [ 13.734033] The buggy address belongs to the physical page: [ 13.734409] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f9 [ 13.734920] flags: 0x200000000000000(node=0|zone=2) [ 13.735396] page_type: f5(slab) [ 13.735659] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.736060] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.736563] page dumped because: kasan: bad access detected [ 13.736859] [ 13.736948] Memory state around the buggy address: [ 13.737297] ffff8881029f9000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.737614] ffff8881029f9080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.737965] >ffff8881029f9100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.738410] ^ [ 13.738753] ffff8881029f9180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.739044] ffff8881029f9200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.739408] ==================================================================