Hello, syzbot found the following issue on: HEAD commit: 707081b61156 Merge branch 'for-next/core', remote-tracking.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=155105be180000 kernel config: https://syzkaller.appspot.com/x/.config?x=caeac3f3565b057a dashboard link: https://syzkaller.appspot.com/bug?extid=adb570fc6161d33edb01 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/6cad68bf7532/disk-707081b6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/1a27e5400778/vmlinux-707081b6.xz kernel image: https://storage.googleapis.com/syzbot-assets/67dfc53755d0/Image-707081b6.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+adb570fc6161d33edb01@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ kernel BUG at include/linux/page-flags.h:314! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 12282 Comm: syz-executor.2 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : folio_flags include/linux/page-flags.h:314 [inline] pc : folio_test_hugetlb include/linux/page-flags.h:849 [inline] pc : PageHuge+0x1f8/0x1fc mm/hugetlb.c:2173 lr : folio_flags include/linux/page-flags.h:314 [inline] lr : folio_test_hugetlb include/linux/page-flags.h:849 [inline] lr : PageHuge+0x1f8/0x1fc mm/hugetlb.c:2173 sp : ffff800097ca6d00 x29: ffff800097ca6d00 x28: dfff800000000000 x27: fffffdffc318ac00 x26: 00000000000000b0 x25: fffffdffc3188000 x24: 05ffc00000000840 x23: 1fffffbff8631580 x22: 1fffffbff8631581 x21: dfff800000000000 x20: 05ffc00000000000 x19: fffffdffc318ac00 x18: 1fffe000367fff96 x17: ffff80008ec9d000 x16: ffff80008ad6b09c x15: 0000000000000001 x14: 1ffff00012f94ce4 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000040000 x10: 000000000003ffff x9 : ffff80009a5da000 x8 : 0000000000040000 x7 : ffff800080297c0c x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff800082f248d0 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000166 Call trace: folio_flags include/linux/page-flags.h:314 [inline] folio_test_hugetlb include/linux/page-flags.h:849 [inline] PageHuge+0x1f8/0x1fc mm/hugetlb.c:2173 isolate_migratepages_block+0x7d8/0x2f9c mm/compaction.c:950 isolate_migratepages mm/compaction.c:2074 [inline] compact_zone+0x26a8/0x4120 mm/compaction.c:2530 compact_node+0x234/0x3c0 mm/compaction.c:2851 compact_nodes mm/compaction.c:2864 [inline] sysctl_compaction_handler+0x110/0x1d4 mm/compaction.c:2910 proc_sys_call_handler+0x4cc/0x7cc fs/proc/proc_sysctl.c:595 proc_sys_write+0x2c/0x3c fs/proc/proc_sysctl.c:621 call_write_iter include/linux/fs.h:2087 [inline] iter_file_splice_write+0x894/0xfc0 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0xec/0x1d8 fs/splice.c:1164 splice_direct_to_actor+0x438/0xa0c fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x1e4/0x304 fs/splice.c:1233 do_sendfile+0x460/0xb3c fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1356 [inline] __se_sys_sendfile64 fs/read_write.c:1348 [inline] __arm64_sys_sendfile64+0x23c/0x3b4 fs/read_write.c:1348 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Code: f0052f01 912c0021 aa1303e0 97fbce80 (d4210000) ---[ 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@xxxxxxxxxxxxxxxx. 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
