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linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, pfalcato@suse.de, phillip@squashfs.org.uk, squashfs-devel@lists.sourceforge.net, syzkaller-bugs@googlegroups.com, vbabka@suse.cz Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: CF807A0002 X-Stat-Signature: ht9dk4su51t1q9fczr66ma3g4oqyuyd1 X-HE-Tag: 1749964409-24938 X-HE-Meta: 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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=107b19d4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=89c13de706fbf07a dashboard link: https://syzkaller.appspot.com/bug?extid=b9b432686bcbcac1ca01 compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1424b60c580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=147b19d4580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/da97ad659b2c/disk-d7fa1af5.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/659e123552a8/vmlinux-d7fa1af5.xz kernel image: https://storage.googleapis.com/syzbot-assets/6ec5dbf4643e/Image-d7fa1af5.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/3df2a90115c7/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b9b432686bcbcac1ca01@syzkaller.appspotmail.com ffff93069000-ffffd1a12fff: 0000000000000000 ffffd1a13000-ffffd1a33fff: ffff0000ca00b640 ffffd1a34000-ffffffffffffffff: 0000000000000000 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6489 at mm/vma.c:768 vma_merge_existing_range+0x14a8/0x1964 mm/vma.c:768 Modules linked in: CPU: 0 UID: 0 PID: 6489 Comm: syz-executor371 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : vma_merge_existing_range+0x14a8/0x1964 mm/vma.c:768 lr : vma_merge_existing_range+0x14a8/0x1964 mm/vma.c:768 sp : ffff8000a0d67910 x29: ffff8000a0d67990 x28: dfff800000000000 x27: 0000000000000001 x26: 0000000020000000 x25: ffff8000a0d67a80 x24: 0000000020000000 x23: 1ffff000141acf50 x22: ffff0000c712ca00 x21: 0000000020800000 x20: ffff0000c712ca00 x19: ffff8000a0d67a60 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008adbe9e4 x15: 0000000000000001 x14: 1fffe0003386aae2 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60003386aae3 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000ca6a9e80 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000a0d66ef8 x4 : ffff80008f415ba0 x3 : ffff8000807b4b68 x2 : 0000000000000001 x1 : ffffffffffffffff x0 : ffffffffffffffff Call trace: vma_merge_existing_range+0x14a8/0x1964 mm/vma.c:768 (P) vma_modify+0x7c/0x424 mm/vma.c:1564 vma_modify_flags+0x18c/0x1dc mm/vma.c:1605 mlock_fixup+0x18c/0x2c4 mm/mlock.c:483 apply_mlockall_flags+0x290/0x344 mm/mlock.c:736 __arm64_sys_munlockall+0x11c/0x238 mm/mlock.c:782 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 15466 hardirqs last enabled at (15465): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (15465): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (15466): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511 softirqs last enabled at (14694): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (14694): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (14683): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- --- 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 syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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