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Fri, 31 Jul 2026 17:36:41 -0700 (PDT) Date: Fri, 31 Jul 2026 17:36:41 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a6d3f99.13bfb6d0.1ecdd5.0255.GAE@google.com> Subject: [syzbot] [mm?] WARNING in alloc_vmap_area 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-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 48879120002 X-Stat-Signature: c5wp31rb8jmjje1i1f4shdzyq1wukngd X-HE-Tag: 1785544602-178026 X-HE-Meta: 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 zZl9wsBg 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 PF7lXNKV sEVnc0VSWdanv7zqiOnkqwAXvicoBHklsO6u8UNmrn5PzePTpxi5ik4ObNLA72MT30kXzqSCTDXt9GTQmzE7bTjTdSiQBFJKUS3SUh0QN3rltDXhS3o0Spv6KGr6j8EiU5WJw1zevs78c5Xr46kWXv89eRhZmkGsLe2lIQIVC3cpJabfeAvGEEPo8JcDZryJ7HNci0WmSUt2pqXV5bz2fFqQakcj6fYDqBASyG2KaDo4sqvIzL+GS2k9i4h0rsN10Pe0sgt/7+eqrc//mxy+6yOV3IZlE47jvbPujTFAlwgN6kPw+ISPMCmhbd6R1yUgDKhwPBpgYnrY7V7oKlXfWQ8nvkBdTYmMzW1KebkD8Q0LtXManEASEs6nC8uylEkA90IEoBO/jP8bh8sVM6pui+dQUnmgLbos/LiG7f+tNvDN941x3QhdKdkI3eIc2hCkY2XLR1LUCBM= 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=165f9499580000 kernel config: https://syzkaller.appspot.com/x/.config?x=f221a1b5d497ed15 dashboard link: https://syzkaller.appspot.com/bug?extid=a308ee836af04d1d6fa6 compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 userspace arch: i386 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/50d1387eb51d/vmlinux-11028ab6.xz kernel image: https://storage.googleapis.com/syzbot-assets/30ffbd0f8cd4/bzImage-11028ab6.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a308ee836af04d1d6fa6@syzkaller.appspotmail.com ret WARNING: mm/vmalloc.c:1820 at va_alloc mm/vmalloc.c:1820 [inline], CPU#3: kworker/u33:7/821 WARNING: mm/vmalloc.c:1820 at __alloc_vmap_area mm/vmalloc.c:1855 [inline], CPU#3: kworker/u33:7/821 WARNING: mm/vmalloc.c:1820 at alloc_vmap_area+0x17f6/0x2bb0 mm/vmalloc.c:2073, CPU#3: kworker/u33:7/821 Modules linked in: CPU: 3 UID: 0 PID: 821 Comm: kworker/u33:7 Tainted: G S syzkaller #0 PREEMPT(full) Tainted: [S]=CPU_OUT_OF_SPEC Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: events_unbound call_usermodehelper_exec_work RIP: 0010:va_alloc mm/vmalloc.c:1820 [inline] RIP: 0010:__alloc_vmap_area mm/vmalloc.c:1855 [inline] RIP: 0010:alloc_vmap_area+0x17f6/0x2bb0 mm/vmalloc.c:2073 Code: 48 8d 3d 8d d8 c0 0e 8b 74 24 10 67 48 0f b9 3a c7 44 24 70 00 00 00 00 e9 95 ed ff ff 48 c7 c3 ea ff ff ff e8 7b b0 a2 ff 90 <0f> 0b 90 41 be 01 00 00 00 e9 ae f9 ff ff 41 be 01 00 00 00 48 c7 RSP: 0018:ffffc90004627458 EFLAGS: 00010293 RAX: 0000000000000000 RBX: fffffffffffffff4 RCX: 0000000000002800 RDX: ffff888025aa8000 RSI: ffffffff8266fbe5 RDI: ffffffff8e46c938 RBP: ffffc90003389000 R08: 00000000ffffffff R09: fffffbfff1dbda96 R10: ffffffff8eded4b3 R11: 0000000000000000 R12: 0000000000000000 R13: ffffc90003399000 R14: ffffe8ffffffffff R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888096ee3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000f7f3a190 CR3: 000000002228f000 CR4: 0000000000352ef0 Call Trace: __get_vm_area_node+0x1ca/0x330 mm/vmalloc.c:3226 __vmalloc_node_range_noprof+0x228/0x1630 mm/vmalloc.c:4042 __vmalloc_node_noprof+0xad/0xf0 mm/vmalloc.c:4143 alloc_thread_stack_node kernel/fork.c:359 [inline] dup_task_struct kernel/fork.c:929 [inline] copy_process+0x7fb/0x8030 kernel/fork.c:2115 kernel_clone+0x176/0x9d0 kernel/fork.c:2748 user_mode_thread+0xcc/0x110 kernel/fork.c:2824 call_usermodehelper_exec_sync kernel/umh.c:132 [inline] call_usermodehelper_exec_work+0x6b/0x180 kernel/umh.c:163 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 --- 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