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Sun, 24 Mar 2024 22:42:21 -0700 (PDT) Date: Sun, 24 Mar 2024 22:42:21 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000026e662061475a373@google.com> Subject: [syzbot] [mm?] kernel BUG in PageHuge From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, muchun.song@linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 059F340004 X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: si4gcot5epztoxjhtkhfbk4cokbwiigf X-HE-Tag: 1711345341-81281 X-HE-Meta: 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 ANLWiOef 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 v9KWO2iE CjRAZZkmy37L+0TrLkpBZtNqu91jtMW0F3coiRYpmeQ3YXPR8nBuaW72QEo+OksZL7o+aOses0W3XhVKS9UYznUv01ilQUZm1iPxcZ/kKhiR/XF17UfbxOQDt7ZW0OIlDd1L8MpoI3dmy9g+zm/5QldZia5cOqopxGFM54JP07zfIuyF2/XOgvh9NOr0l7BwXXLhPh65XNlUF+hetPLVSOKXL7muY6ze5yGl5xWSYI7gBN3OmmVIrras+QRn9zq5pBSvGODuXY+hXPm43LA1sVKWHahHrOGCIMV2unRMVzvwNT3Z3jTsK6WYZEi9Sd2SpYIlBDz7mWqaF1FVKdu3ve1dqMyZEjXIHOmUwSrSWsDOzX2iuqMY+w== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 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: 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@syzkaller.appspotmail.com ------------[ 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@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