Date
June 17, 2025, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.940141] ================================================================== [ 16.940220] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0 [ 16.940285] Read of size 18446744073709551614 at addr fff00000c505c104 by task kunit_try_catch/189 [ 16.940559] [ 16.940773] CPU: 1 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250617 #1 PREEMPT [ 16.940882] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.940910] Hardware name: linux,dummy-virt (DT) [ 16.941460] Call trace: [ 16.941505] show_stack+0x20/0x38 (C) [ 16.941743] dump_stack_lvl+0x8c/0xd0 [ 16.941813] print_report+0x118/0x608 [ 16.941893] kasan_report+0xdc/0x128 [ 16.941955] kasan_check_range+0x100/0x1a8 [ 16.942022] __asan_memmove+0x3c/0x98 [ 16.942138] kmalloc_memmove_negative_size+0x154/0x2e0 [ 16.942345] kunit_try_run_case+0x170/0x3f0 [ 16.942584] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.942759] kthread+0x328/0x630 [ 16.942862] ret_from_fork+0x10/0x20 [ 16.943018] [ 16.943086] Allocated by task 189: [ 16.943211] kasan_save_stack+0x3c/0x68 [ 16.943257] kasan_save_track+0x20/0x40 [ 16.943320] kasan_save_alloc_info+0x40/0x58 [ 16.943497] __kasan_kmalloc+0xd4/0xd8 [ 16.943734] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.943815] kmalloc_memmove_negative_size+0xb0/0x2e0 [ 16.943952] kunit_try_run_case+0x170/0x3f0 [ 16.944011] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.944237] kthread+0x328/0x630 [ 16.944517] ret_from_fork+0x10/0x20 [ 16.945285] [ 16.945342] The buggy address belongs to the object at fff00000c505c100 [ 16.945342] which belongs to the cache kmalloc-64 of size 64 [ 16.945417] The buggy address is located 4 bytes inside of [ 16.945417] 64-byte region [fff00000c505c100, fff00000c505c140) [ 16.945498] [ 16.945520] The buggy address belongs to the physical page: [ 16.945605] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10505c [ 16.946154] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.946250] page_type: f5(slab) [ 16.946311] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 16.946364] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 16.946904] page dumped because: kasan: bad access detected [ 16.947602] [ 16.947652] Memory state around the buggy address: [ 16.947699] fff00000c505c000: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 16.947778] fff00000c505c080: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 16.947847] >fff00000c505c100: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 16.948196] ^ [ 16.948379] fff00000c505c180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.948488] fff00000c505c200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.948556] ==================================================================
[ 18.213158] ================================================================== [ 18.214622] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x171/0x330 [ 18.215390] Read of size 18446744073709551614 at addr ffff888102aa7504 by task kunit_try_catch/207 [ 18.216149] [ 18.216739] CPU: 1 UID: 0 PID: 207 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250617 #1 PREEMPT(voluntary) [ 18.216884] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.216921] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.216976] Call Trace: [ 18.217012] <TASK> [ 18.217057] dump_stack_lvl+0x73/0xb0 [ 18.217143] print_report+0xd1/0x650 [ 18.217227] ? __virt_addr_valid+0x1db/0x2d0 [ 18.217303] ? kmalloc_memmove_negative_size+0x171/0x330 [ 18.217382] ? kasan_complete_mode_report_info+0x2a/0x200 [ 18.217455] ? kmalloc_memmove_negative_size+0x171/0x330 [ 18.217562] kasan_report+0x141/0x180 [ 18.217642] ? kmalloc_memmove_negative_size+0x171/0x330 [ 18.217688] kasan_check_range+0x10c/0x1c0 [ 18.217722] __asan_memmove+0x27/0x70 [ 18.217749] kmalloc_memmove_negative_size+0x171/0x330 [ 18.217783] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 18.217818] ? __schedule+0x10cc/0x2b60 [ 18.217875] ? __pfx_read_tsc+0x10/0x10 [ 18.217909] ? ktime_get_ts64+0x86/0x230 [ 18.217943] kunit_try_run_case+0x1a5/0x480 [ 18.217977] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.218009] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 18.218038] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 18.218074] ? __kthread_parkme+0x82/0x180 [ 18.218101] ? preempt_count_sub+0x50/0x80 [ 18.218133] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.218164] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.218195] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 18.218240] kthread+0x337/0x6f0 [ 18.218308] ? trace_preempt_on+0x20/0xc0 [ 18.218372] ? __pfx_kthread+0x10/0x10 [ 18.218404] ? _raw_spin_unlock_irq+0x47/0x80 [ 18.218439] ? calculate_sigpending+0x7b/0xa0 [ 18.218474] ? __pfx_kthread+0x10/0x10 [ 18.218529] ret_from_fork+0x116/0x1d0 [ 18.218585] ? __pfx_kthread+0x10/0x10 [ 18.218638] ret_from_fork_asm+0x1a/0x30 [ 18.218713] </TASK> [ 18.218747] [ 18.235891] Allocated by task 207: [ 18.236417] kasan_save_stack+0x45/0x70 [ 18.236856] kasan_save_track+0x18/0x40 [ 18.237666] kasan_save_alloc_info+0x3b/0x50 [ 18.238124] __kasan_kmalloc+0xb7/0xc0 [ 18.238510] __kmalloc_cache_noprof+0x189/0x420 [ 18.239187] kmalloc_memmove_negative_size+0xac/0x330 [ 18.239857] kunit_try_run_case+0x1a5/0x480 [ 18.240501] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.241054] kthread+0x337/0x6f0 [ 18.241648] ret_from_fork+0x116/0x1d0 [ 18.242028] ret_from_fork_asm+0x1a/0x30 [ 18.243109] [ 18.243452] The buggy address belongs to the object at ffff888102aa7500 [ 18.243452] which belongs to the cache kmalloc-64 of size 64 [ 18.244698] The buggy address is located 4 bytes inside of [ 18.244698] 64-byte region [ffff888102aa7500, ffff888102aa7540) [ 18.245751] [ 18.246047] The buggy address belongs to the physical page: [ 18.246694] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102aa7 [ 18.247611] flags: 0x200000000000000(node=0|zone=2) [ 18.248026] page_type: f5(slab) [ 18.249118] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 18.249746] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 18.250296] page dumped because: kasan: bad access detected [ 18.250764] [ 18.251430] Memory state around the buggy address: [ 18.251860] ffff888102aa7400: 00 00 00 00 05 fc fc fc fc fc fc fc fc fc fc fc [ 18.252605] ffff888102aa7480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.253979] >ffff888102aa7500: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 18.254710] ^ [ 18.255052] ffff888102aa7580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.255894] ffff888102aa7600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.256781] ==================================================================