Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc498558c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fafe060e9f9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 00007ffc498558f0 R08: 0000000000000002 R09: 00007ffc49855900 R10: 0000000100000000 R11: 0000000000000246 R12: 0000000000000005 R13: 00007ffc49855930 R14: 00007ffc49855910 R15: 0000000000000001 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4998 at lib/iov_iter.c:970 iov_iter_revert+0x381/0x830 Modules linked in: CPU: 1 PID: 4998 Comm: syz-executor221 Not tainted 6.4.0-rc5-syzkaller-00017-ga27648c74210 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:iov_iter_revert+0x381/0x830 lib/iov_iter.c:970 Code: 80 3c 01 00 48 8b 5c 24 18 74 08 48 89 df e8 56 69 b1 fd 4c 89 3b 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 9f 93 59 fd <0f> 0b eb e8 48 8b 6c 24 08 48 89 e8 48 c1 e8 03 42 80 3c 38 00 74 RSP: 0018:ffffc90003a1f7f0 EFLAGS: 00010293 RAX: ffffffff8431eb91 RBX: ffffc90003a1f980 RCX: ffff88802c100000 RDX: 0000000000000000 RSI: ffffffffffff1000 RDI: 000000007ffff000 RBP: ffffffffffff1000 R08: ffffffff8431e850 R09: fffffbfff1a008b3 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffffff1000 R13: ffffc90003a1f980 R14: ffffc90003a1f998 R15: 0000000000000000 FS: 0000555556814300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fafe06a0138 CR3: 0000000017acd000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: generic_file_read_iter+0x3db/0x540 mm/filemap.c:2820 call_read_iter include/linux/fs.h:1862 [inline] generic_file_splice_read+0x240/0x640 fs/splice.c:419 do_splice_to fs/splice.c:902 [inline] splice_direct_to_actor+0x40c/0xbd0 fs/splice.c:973 do_splice_direct+0x283/0x3d0 fs/splice.c:1082 do_sendfile+0x620/0xff0 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1308 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: 0033:0x7fafe060e9f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc498558c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fafe060e9f9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 00007ffc498558f0 R08: 0000000000000002 R09: 00007ffc49855900 R10: 0000000100000000 R11: 0000000000000246 R12: 0000000000000005 R13: 00007ffc49855930 R14: 00007ffc49855910 R15: 0000000000000001 ---------------- Code disassembly (best guess): 0: 28 00 sub %al,(%rax) 2: 00 00 add %al,(%rax) 4: 75 05 jne 0xb 6: 48 83 c4 28 add $0x28,%rsp a: c3 retq b: e8 11 15 00 00 callq 0x1521 10: 90 nop 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall * 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 retq 33: 48 c7 c1 c0 ff ff ff mov $0xffffffffffffffc0,%rcx 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W