------------[ cut here ]------------ unroll > MAX_RW_COUNT WARNING: lib/iov_iter.c:624 at iov_iter_revert+0x58a/0x5f0 lib/iov_iter.c:624, CPU#0: syz.2.524/7661 Modules linked in: CPU: 0 UID: 0 PID: 7661 Comm: syz.2.524 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:iov_iter_revert+0x58a/0x5f0 lib/iov_iter.c:624 Code: 5c 24 30 74 08 48 89 df e8 73 35 85 fd 4c 89 2b 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 67 9a 1b fd 90 <0f> 0b 90 eb e1 e8 5c 9a 1b fd eb da 89 d9 80 e1 07 38 c1 0f 8c e6 RSP: 0000:ffffc90002fbfbb8 EFLAGS: 00010283 RAX: ffffffff84a931b9 RBX: ffffc90002fbfd70 RCX: 0000000000080000 RDX: ffffc9000e911000 RSI: 0000000000001297 RDI: 0000000000001298 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000005 R12: 1ffff920005f7fb1 R13: 0000000000001000 R14: ffffc90002fbfd88 R15: fffffffffffff00a FS: 00007f0f222e66c0(0000) GS:ffff888125f1f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000140a CR3: 000000005f504000 CR4: 00000000003526f0 Call Trace: generic_file_read_iter+0x38f/0x520 mm/filemap.c:2981 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x58b/0xa80 fs/read_write.c:574 ksys_read+0x156/0x270 fs/read_write.c:717 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0f2408cdd9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0f222e6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f0f24305fa0 RCX: 00007f0f2408cdd9 RDX: 0000000000001000 RSI: 0000200000001400 RDI: 0000000000000004 RBP: 00007f0f24122d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0f24306038 R14: 00007f0f24305fa0 R15: 00007fff5c721268