Date
July 9, 2025, 2:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.677531] ================================================================== [ 16.677626] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 16.677728] Read of size 1 at addr fff00000c5c8f000 by task kunit_try_catch/140 [ 16.677915] [ 16.678054] CPU: 0 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.678368] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.678504] Hardware name: linux,dummy-virt (DT) [ 16.678547] Call trace: [ 16.678569] show_stack+0x20/0x38 (C) [ 16.678620] dump_stack_lvl+0x8c/0xd0 [ 16.678667] print_report+0x118/0x608 [ 16.678714] kasan_report+0xdc/0x128 [ 16.678760] __asan_report_load1_noabort+0x20/0x30 [ 16.678811] kmalloc_node_oob_right+0x2f4/0x330 [ 16.678859] kunit_try_run_case+0x170/0x3f0 [ 16.678906] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.678961] kthread+0x328/0x630 [ 16.679026] ret_from_fork+0x10/0x20 [ 16.679075] [ 16.679103] Allocated by task 140: [ 16.679130] kasan_save_stack+0x3c/0x68 [ 16.679170] kasan_save_track+0x20/0x40 [ 16.679284] kasan_save_alloc_info+0x40/0x58 [ 16.679509] __kasan_kmalloc+0xd4/0xd8 [ 16.679625] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 16.679747] kmalloc_node_oob_right+0xbc/0x330 [ 16.679786] kunit_try_run_case+0x170/0x3f0 [ 16.679834] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.679878] kthread+0x328/0x630 [ 16.679954] ret_from_fork+0x10/0x20 [ 16.679989] [ 16.680103] The buggy address belongs to the object at fff00000c5c8e000 [ 16.680103] which belongs to the cache kmalloc-4k of size 4096 [ 16.680171] The buggy address is located 0 bytes to the right of [ 16.680171] allocated 4096-byte region [fff00000c5c8e000, fff00000c5c8f000) [ 16.680243] [ 16.680361] The buggy address belongs to the physical page: [ 16.680458] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105c88 [ 16.680617] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 16.680682] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 16.680745] page_type: f5(slab) [ 16.680783] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 16.680834] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 16.680953] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 16.681041] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 16.681127] head: 0bfffe0000000003 ffffc1ffc3172201 00000000ffffffff 00000000ffffffff [ 16.681211] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 16.681254] page dumped because: kasan: bad access detected [ 16.681342] [ 16.681393] Memory state around the buggy address: [ 16.681520] fff00000c5c8ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.681583] fff00000c5c8ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.681745] >fff00000c5c8f000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.681849] ^ [ 16.681983] fff00000c5c8f080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.682025] fff00000c5c8f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.682063] ==================================================================
[ 12.106498] ================================================================== [ 12.107535] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 12.107828] Read of size 1 at addr ffff888103921000 by task kunit_try_catch/157 [ 12.108052] [ 12.108161] CPU: 0 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.108211] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.108222] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.108246] Call Trace: [ 12.108259] <TASK> [ 12.108281] dump_stack_lvl+0x73/0xb0 [ 12.108313] print_report+0xd1/0x650 [ 12.108336] ? __virt_addr_valid+0x1db/0x2d0 [ 12.108361] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.108384] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.108406] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.108430] kasan_report+0x141/0x180 [ 12.108450] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.108477] __asan_report_load1_noabort+0x18/0x20 [ 12.108501] kmalloc_node_oob_right+0x369/0x3c0 [ 12.108525] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 12.108549] ? __schedule+0x10cc/0x2b60 [ 12.108571] ? __pfx_read_tsc+0x10/0x10 [ 12.108603] ? ktime_get_ts64+0x86/0x230 [ 12.108630] kunit_try_run_case+0x1a5/0x480 [ 12.108656] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.108678] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.108702] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.108725] ? __kthread_parkme+0x82/0x180 [ 12.108747] ? preempt_count_sub+0x50/0x80 [ 12.108771] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.108795] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.108819] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.108842] kthread+0x337/0x6f0 [ 12.108860] ? trace_preempt_on+0x20/0xc0 [ 12.108884] ? __pfx_kthread+0x10/0x10 [ 12.108904] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.108925] ? calculate_sigpending+0x7b/0xa0 [ 12.108949] ? __pfx_kthread+0x10/0x10 [ 12.108969] ret_from_fork+0x116/0x1d0 [ 12.108986] ? __pfx_kthread+0x10/0x10 [ 12.109005] ret_from_fork_asm+0x1a/0x30 [ 12.109037] </TASK> [ 12.109048] [ 12.118533] Allocated by task 157: [ 12.119038] kasan_save_stack+0x45/0x70 [ 12.119237] kasan_save_track+0x18/0x40 [ 12.119429] kasan_save_alloc_info+0x3b/0x50 [ 12.119873] __kasan_kmalloc+0xb7/0xc0 [ 12.120049] __kmalloc_cache_node_noprof+0x188/0x420 [ 12.120422] kmalloc_node_oob_right+0xab/0x3c0 [ 12.120609] kunit_try_run_case+0x1a5/0x480 [ 12.121009] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.121405] kthread+0x337/0x6f0 [ 12.121571] ret_from_fork+0x116/0x1d0 [ 12.121726] ret_from_fork_asm+0x1a/0x30 [ 12.122171] [ 12.122258] The buggy address belongs to the object at ffff888103920000 [ 12.122258] which belongs to the cache kmalloc-4k of size 4096 [ 12.123070] The buggy address is located 0 bytes to the right of [ 12.123070] allocated 4096-byte region [ffff888103920000, ffff888103921000) [ 12.123738] [ 12.124002] The buggy address belongs to the physical page: [ 12.124331] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103920 [ 12.125611] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.125885] flags: 0x200000000000040(head|node=0|zone=2) [ 12.126173] page_type: f5(slab) [ 12.126300] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.126531] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.126838] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.127635] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.129618] head: 0200000000000003 ffffea00040e4801 00000000ffffffff 00000000ffffffff [ 12.130481] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 12.131515] page dumped because: kasan: bad access detected [ 12.132336] [ 12.132415] Memory state around the buggy address: [ 12.132575] ffff888103920f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.133027] ffff888103920f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.133651] >ffff888103921000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.134299] ^ [ 12.134584] ffff888103921080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.135292] ffff888103921100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.136027] ==================================================================