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Mon, 07 Sep 2026 18:22:24 -0700 (PDT) Date: Mon, 07 Sep 2026 18:22:24 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a9f6350.6e6c5f9e.28f11f.0005.GAE@google.com> Subject: [syzbot] [mm?] WARNING in swap_put_entries_direct From: syzbot To: akpm@linux-foundation.org, baohua@kernel.org, baoquan.he@linux.dev, chrisl@kernel.org, kasong@tencent.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, nphamcs@gmail.com, shikemeng@huaweicloud.com, syzkaller-bugs@googlegroups.com, youngjun.park@lge.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 2001840008 X-Stat-Signature: p4qw4cc4cz6cca7ho4cks7mts7ud9suq X-Rspam-User: X-HE-Tag: 1788830544-14700 X-HE-Meta: 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 eNM/3rFS 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 XPd0zUC2 nGVLfIcMbTrq6MynglYatYMmZl+PYswvRtiJf9U7U1i1sI434i9eWY/ZrRkvRJJmnkvOkFlXxeYaT6Y4t6y4PcB7Stfn+d9PrrDt6dftPpgrHQhUDNn5TYWttg9GuosewLamMGS1260mEYYrqvbC9vyDpmrgXvQqwe6cszHg4Pk9GwgvQxxaiCsr9W2cmWoUlRnYUhOLDh95a4ysFR1xXATKX7wqW09FW8u52UdqZ3325KgoqW61/aQdLRJgFDXHawVgNAQ/IBvvKcM5fBM7K4V6YiCIjHCWLaN9nobaOu61Y0mtV19FeZBYLaDW7YiZG8tbo8uAXdT2mBJHKIdGGWU99U4Xxcy8xbqSuJU37BcsJGsiLrk4/G5bS0RuX8f6bTV2NFl5XuizcqAfDUSAwGfAPLgdF5XPASiNDv/IH4ekj7nGgoqxjlHtPJHjripOA9ZpKULMcAg= 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: 8ab1afb2eb24 Merge tag 'for-7.3/dm-fixes' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1034a125580000 kernel config: https://syzkaller.appspot.com/x/.config?x=85bc5cc2fc7394d9 dashboard link: https://syzkaller.appspot.com/bug?extid=23b25ba3c6bf971f9c57 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-8ab1afb2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4767b33b6704/vmlinux-8ab1afb2.xz kernel image: https://storage.googleapis.com/syzbot-assets/aa0bdf390bbc/bzImage-8ab1afb2.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+23b25ba3c6bf971f9c57@syzkaller.appspotmail.com get_swap_device: Bad swap file entry 7c00000000000002 ------------[ cut here ]------------ !si WARNING: mm/swapfile.c:2130 at swap_put_entries_direct+0x17d/0x1b0 mm/swapfile.c:2130, CPU#1: udevd/13167 Modules linked in: CPU: 1 UID: 0 PID: 13167 Comm: udevd Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:swap_put_entries_direct+0x17d/0x1b0 mm/swapfile.c:2130 Code: 00 00 00 00 48 8b 44 24 58 65 48 2b 05 64 fa 15 12 75 3b 48 83 c4 60 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc e8 74 a6 95 ff 90 <0f> 0b 90 eb be e8 69 a6 95 ff 90 0f 0b 90 eb a6 e8 5e bf 07 00 e9 RSP: 0018:ffffc90004d9f628 EFLAGS: 00010293 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff888049448000 RSI: ffffffff827595bc RDI: fffff520009b3ea4 RBP: 0000000000000003 R08: 0000000000000007 R09: 0000000000000000 R10: 8000000000000000 R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000000 R14: 1ffff920009b3ec5 R15: ffffc90004d9f6e0 FS: 00007fcd01ba2880(0000) GS:ffff888096a67000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000f740d2a8 CR3: 00000000703ea000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: shmem_free_swap+0x1f4/0x200 mm/shmem.c:996 shmem_undo_range+0x3fd/0x1570 mm/shmem.c:1151 shmem_truncate_range mm/shmem.c:1289 [inline] shmem_evict_inode+0x3b1/0xca0 mm/shmem.c:1420 evict+0x3c2/0xad0 fs/inode.c:822 iput_final fs/inode.c:2015 [inline] iput.part.0+0x989/0x1050 fs/inode.c:2064 iput+0x35/0x40 fs/inode.c:2030 filename_unlinkat+0x466/0x730 fs/namei.c:5723 __do_sys_unlink fs/namei.c:5754 [inline] __se_sys_unlink fs/namei.c:5751 [inline] __x64_sys_unlink+0x46/0x70 fs/namei.c:5751 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x121/0x770 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcd01515937 Code: 00 00 e9 a9 fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 5f 00 00 00 0f 05 c3 0f 1f 84 00 00 00 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 91 b4 0d 00 f7 d8 64 89 02 b8 RSP: 002b:00007ffc4214fcf8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007ffc4214fd00 RCX: 00007fcd01515937 RDX: 0000000000000000 RSI: 00000000000003ed RDI: 00007ffc4214fd00 RBP: 000055f191cfee00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 000000000aba9500 R13: 0000000003938700 R14: 000055f18779e100 R15: 000055f18779e140 --- 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