syzbot has found a reproducer for the following issue on: HEAD commit: 9ed22ae6be81 Merge tag 'spi-fix-v6.6-rc3' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=126a50d6680000 kernel config: https://syzkaller.appspot.com/x/.config?x=12da82ece7bf46f9 dashboard link: https://syzkaller.appspot.com/bug?extid=307da6ca5cb0d01d581a compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15eb672e680000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16219bc6680000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f059028ccc85/disk-9ed22ae6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3b01e6cd5f62/vmlinux-9ed22ae6.xz kernel image: https://storage.googleapis.com/syzbot-assets/32202918d16c/bzImage-9ed22ae6.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/38533c948c72/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+307da6ca5cb0d01d581a@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5195 at fs/ext4/inode.c:3338 ext4_iomap_begin+0xa9b/0xd30 Modules linked in: CPU: 0 PID: 5195 Comm: syz-executor392 Not tainted 6.6.0-rc3-syzkaller-00055-g9ed22ae6be81 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:ext4_iomap_begin+0xa9b/0xd30 fs/ext4/inode.c:3338 Code: d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ce 3d 4c ff 49 be 00 00 00 00 00 fc ff df 48 8b 5c 24 48 e9 65 ff ff ff e8 b5 3d 4c ff <0f> 0b 41 bc de ff ff ff e9 8f f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c RSP: 0018:ffffc9000405f580 EFLAGS: 00010293 RAX: ffffffff8241ccbb RBX: 0000000010000000 RCX: ffff88802234d940 RDX: 0000000000000000 RSI: 00000000000000bc RDI: 0000000000000000 RBP: ffffc9000405f6f0 R08: ffffffff8241c408 R09: 1ffff1100eff5b4a R10: dffffc0000000000 R11: ffffed100eff5b4b R12: 00000000000000bc R13: 1ffff1100eff5baf R14: 000000000000000b R15: 0000000000000016 FS: 00007f68b788c6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f68b788cd58 CR3: 000000006b9c0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> iomap_iter+0x677/0xec0 fs/iomap/iter.c:91 __iomap_dio_rw+0xe2e/0x2370 fs/iomap/direct-io.c:658 iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:748 ext4_dio_write_iter fs/ext4/file.c:605 [inline] ext4_file_write_iter+0x165f/0x1ad0 fs/ext4/file.c:715 call_write_iter include/linux/fs.h:1956 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x782/0xaf0 fs/read_write.c:584 ksys_pwrite64 fs/read_write.c:699 [inline] __do_sys_pwrite64 fs/read_write.c:709 [inline] __se_sys_pwrite64 fs/read_write.c:706 [inline] __x64_sys_pwrite64+0x1aa/0x230 fs/read_write.c:706 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f68bfbf0b59 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f68b788c218 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f68b788c6c0 RCX: 00007f68bfbf0b59 RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000005 RBP: 00007f68bfc796d8 R08: 00007ffd6a04dbc7 R09: 0000000000000000 R10: 000000000000b114 R11: 0000000000000246 R12: ffffffffffffffb0 R13: 00007f68bfc796d0 R14: 00007f68bfc45840 R15: 0030656c69662f2e </TASK> --- 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.
