SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5803 comm=syz-executor.0 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.0 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5806 at lib/iov_iter.c:385 _copy_from_iter+0x2f1/0x1320 Modules linked in: CPU: 1 PID: 5806 Comm: syz-executor.0 Not tainted 6.4.0-rc4-next-20230601 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2f1/0x1320 Code: b2 ff ff 89 c3 e9 1f ff ff ff e8 da d4 35 ff be 85 01 00 00 48 c7 c7 e0 e8 9e 84 e8 89 27 5a ff e9 13 fe ff ff e8 bf d4 35 ff <0f> 0b 45 31 f6 e9 67 ff ff ff e8 b0 d4 35 ff 31 ff 89 ee e8 e7 cf RSP: 0018:ffff8880415d7608 EFLAGS: 00010216 RAX: 00000000000035cb RBX: 0000000000000000 RCX: ffffc900009cc000 RDX: 0000000000040000 RSI: ffffffff82162c51 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8180ff15 R12: 0000000000001000 R13: ffffea0001133400 R14: 0000000000001000 R15: ffff8880415d7838 FS: 00007f83fcfb4700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f83fcf93718 CR3: 000000000de54000 CR4: 0000000000350ee0 Call Trace: copy_page_from_iter+0xe3/0x180 blk_rq_map_user_iov+0xb39/0x16c0 blk_rq_map_user_io+0x1d1/0x200 sg_common_write.constprop.0+0xd8d/0x15f0 sg_write.part.0+0x698/0xac0 sg_write+0x8d/0xe0 vfs_write+0x2b8/0xd40 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f83ffa5fb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f83fcfb4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f83ffb73020 RCX: 00007f83ffa5fb19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000006 RBP: 00007f83ffab9f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffce6bfd91f R14: 00007f83fcfb4300 R15: 0000000000022000 irq event stamp: 2015 hardirqs last enabled at (2025): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2036): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1486): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (1475): [] irq_exit_rcu+0x93/0xc0 ---[ end trace 0000000000000000 ]--- sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5806 comm=syz-executor.0 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer audit: type=1400 audit(1685619328.539:21): avc: denied { watch_reads } for pid=5825 comm="syz-executor.1" path="/syzkaller-testdir360791816/syzkaller.pRPxFH/94/file0" dev="sda" ino=16024 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=dir permissive=1 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.0 not setting count and/or reply_len properly sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.3 not setting count and/or reply_len properly loop6: detected capacity change from 0 to 512 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5841 comm=syz-executor.0 EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop6): unmounting filesystem 00000000-0000-0000-0000-000000000000. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5899 comm=syz-executor.0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5901 comm=syz-executor.3 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.0 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5919 comm=syz-executor.0 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.3 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5939 comm=syz-executor.3 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. =======================================================