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Fri, 31 Jul 2026 17:24:29 -0700 (PDT) Date: Fri, 31 Jul 2026 17:24:29 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a6d3cbd.6ce73036.24301b.000e.GAE@google.com> Subject: [syzbot] [mm?] WARNING in va_alloc From: syzbot To: akpm@linux-foundation.org, bsegall@google.com, david@kernel.org, dietmar.eggemann@arm.com, juri.lelli@redhat.com, kees@kernel.org, kprateek.nayak@amd.com, liam@infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, ljs@kernel.org, mgorman@suse.de, mhocko@suse.com, mingo@redhat.com, peterz@infradead.org, rostedt@goodmis.org, rppt@kernel.org, surenb@google.com, syzkaller-bugs@googlegroups.com, vbabka@kernel.org, vincent.guittot@linaro.org, vschneid@redhat.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: C20BE180007 X-Stat-Signature: ser4mtome4ragicf8rs4jhfzxu453woa X-Rspam-User: X-HE-Tag: 1785543870-789466 X-HE-Meta: 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 JGcWQ4/a 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 +nCxKthW WfJ0C3CUQhGqoF28lxyu1vrsZLp08wvBxApqfJ14WBl1f7ap/GJ0g/qoJlqt5YOHMhUZhbs6CDD4O60zJyN+t8jik7i4xUzJO2kLl9b1F6GJO0r++CQcxucxbcDhAtUIBH8WRSAiBtSdvfv5yKyLvZHoGk9/H73Sml2Voh3VbyJb7U3iMBES7Xyr75oY5XjOPaZM6siyAKh0XklWXHBopf79wXKU/x9zA/eDrl5cj7gXbYFBJDbQwyCtcx6K4P7q6hRSvn+0ShTWm07p1Ek0z8rAq8q96v0SsDYRFCXWYrn4XYyJUzmcZGpAI7ale6iqKX0V15XpapcQ6Kv3elshLTGBL7UU6f/ZoSQbARQsjl20T9xx16cD74w/QVLQOh7yUr2V4nG/dxCcX7ikRBhkLUAMzftJCaRJDXkloyvzIu4nfM8kZZHiiccK189sjrQF8WxDcAA1Dl18uvZH9tsofA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, syzbot found the following issue on: HEAD commit: 11028ab62899 Merge tag 'probes-fixes-v7.2-rc5' of git://gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16efd632580000 kernel config: https://syzkaller.appspot.com/x/.config?x=c05be6c9b0d36cb9 dashboard link: https://syzkaller.appspot.com/bug?extid=61c997e6be1d9bb300ba compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-11028ab6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/511647651d7f/vmlinux-11028ab6.xz kernel image: https://storage.googleapis.com/syzbot-assets/1c76180d0109/bzImage-11028ab6.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+61c997e6be1d9bb300ba@syzkaller.appspotmail.com FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 1, space 0, times 977 CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 fail_dump lib/fault-inject.c:73 [inline] should_fail_ex+0x40c/0x560 lib/fault-inject.c:174 should_failslab+0xa8/0x100 mm/failslab.c:46 slab_pre_alloc_hook mm/slub.c:4539 [inline] slab_alloc_node mm/slub.c:4897 [inline] kmem_cache_alloc_node_noprof+0xb3/0x610 mm/slub.c:4989 preload_this_cpu_lock+0x49/0xc0 mm/vmalloc.c:1902 alloc_vmap_area+0x3c3/0x1420 mm/vmalloc.c:2072 __get_vm_area_node+0x1f2/0x300 mm/vmalloc.c:3226 __vmalloc_node_range_noprof+0x358/0x1730 mm/vmalloc.c:4042 __vmalloc_node_noprof+0xc2/0x100 mm/vmalloc.c:4143 alloc_thread_stack_node kernel/fork.c:359 [inline] dup_task_struct+0x2a0/0x8e0 kernel/fork.c:929 copy_process+0x820/0x4390 kernel/fork.c:2115 kernel_clone+0x2d7/0x940 kernel/fork.c:2748 __do_sys_clone3 kernel/fork.c:3050 [inline] __se_sys_clone3+0x33c/0x360 kernel/fork.c:3029 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9d8f39ed89 Code: 90 b8 01 00 00 00 b9 01 00 00 00 eb ec 0f 1f 40 00 b8 ea ff ff ff 48 85 ff 74 28 48 85 d2 74 23 49 89 c8 b8 b3 01 00 00 0f 05 <48> 85 c0 7c 14 74 01 c3 31 ed 4c 89 c7 ff d2 48 89 c7 b8 3c 00 00 RSP: 002b:00007fffcf746358 EFLAGS: 00000202 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f9d8f35a320 RCX: 00007f9d8f39ed89 RDX: 00007f9d8f35a320 RSI: 0000000000000058 RDI: 00007fffcf7463b0 RBP: 00007f9d902776c0 R08: 00007f9d902776c0 R09: 00007fffcf746497 R10: 0000000000000008 R11: 0000000000000202 R12: ffffffffffffffe8 R13: 000000000000006e R14: 00007fffcf7463b0 R15: 00007fffcf746498 ------------[ cut here ]------------ ret WARNING: mm/vmalloc.c:1820 at va_alloc+0xeb/0xec0 mm/vmalloc.c:1820, CPU#0: syz.0.0/5320 Modules linked in: CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:va_alloc+0xeb/0xec0 mm/vmalloc.c:1820 Code: 08 4c 89 ef e8 16 98 10 00 4d 8b 7d 00 48 89 df 4c 89 fe e8 97 69 a1 ff 4c 39 fb 76 27 e8 2d 67 a1 ff 49 c7 c6 ea ff ff ff 90 <0f> 0b 90 4c 89 f0 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc RSP: 0018:ffffc9000f5e74b0 EFLAGS: 00010293 RAX: ffffffff8225caea RBX: ffffc9000f679000 RCX: ffff88801fae2540 RDX: 0000000000000000 RSI: ffffffff8c4bed60 RDI: ffffffff8c4bed20 RBP: ffff88803f07ef08 R08: 00000000ffffffff R09: 1ffffffff1d94962 R10: dffffc0000000000 R11: fffffbfff1d94963 R12: 1ffff11007e0fde1 R13: ffffc9000f670000 R14: fffffffffffffff4 R15: 0000000000000000 FS: 000055557c363540(0000) GS:ffff88808c543000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9d90277d58 CR3: 0000000012236000 CR4: 0000000000352ef0 Call Trace: __alloc_vmap_area mm/vmalloc.c:1855 [inline] alloc_vmap_area+0x907/0x1420 mm/vmalloc.c:2073 __get_vm_area_node+0x1f2/0x300 mm/vmalloc.c:3226 __vmalloc_node_range_noprof+0x358/0x1730 mm/vmalloc.c:4042 __vmalloc_node_noprof+0xc2/0x100 mm/vmalloc.c:4143 alloc_thread_stack_node kernel/fork.c:359 [inline] dup_task_struct+0x2a0/0x8e0 kernel/fork.c:929 copy_process+0x820/0x4390 kernel/fork.c:2115 kernel_clone+0x2d7/0x940 kernel/fork.c:2748 __do_sys_clone3 kernel/fork.c:3050 [inline] __se_sys_clone3+0x33c/0x360 kernel/fork.c:3029 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9d8f39ed89 Code: 90 b8 01 00 00 00 b9 01 00 00 00 eb ec 0f 1f 40 00 b8 ea ff ff ff 48 85 ff 74 28 48 85 d2 74 23 49 89 c8 b8 b3 01 00 00 0f 05 <48> 85 c0 7c 14 74 01 c3 31 ed 4c 89 c7 ff d2 48 89 c7 b8 3c 00 00 RSP: 002b:00007fffcf746358 EFLAGS: 00000202 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f9d8f35a320 RCX: 00007f9d8f39ed89 RDX: 00007f9d8f35a320 RSI: 0000000000000058 RDI: 00007fffcf7463b0 RBP: 00007f9d902776c0 R08: 00007f9d902776c0 R09: 00007fffcf746497 R10: 0000000000000008 R11: 0000000000000202 R12: ffffffffffffffe8 R13: 000000000000006e R14: 00007fffcf7463b0 R15: 00007fffcf746498 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup