sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.5 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7962 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170 Modules linked in: CPU: 1 PID: 7962 Comm: syz-executor.5 Not tainted 6.2.0-rc3-next-20230111 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2bf/0x1170 Code: 5d 41 5e 41 5f e9 35 4a 32 02 e8 fc 2e 37 ff be 79 02 00 00 48 c7 c7 00 d6 9e 84 e8 cb db 5a ff e9 48 fe ff ff e8 e1 2e 37 ff <0f> 0b 45 31 f6 eb 87 e8 d5 2e 37 ff 31 ff 89 ee e8 9c 2a 37 ff 40 RSP: 0018:ffff8880434df608 EFLAGS: 00010216 RAX: 000000000000176d RBX: 0000000000000000 RCX: ffffc90006a20000 RDX: 0000000000040000 RSI: ffffffff8212476f RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880434df838 R13: ffffea00010df200 R14: 0000000000000390 R15: ffff8880434df838 FS: 00007f5a6f18f700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cf26000 CR3: 0000000019dd2000 CR4: 0000000000350ee0 Call Trace: copy_page_from_iter+0xe3/0x180 blk_rq_map_user_iov+0xb15/0x16a0 blk_rq_map_user_io+0x1d1/0x200 sg_common_write.constprop.0+0xd8d/0x15f0 sg_write.part.0+0x698/0xa90 sg_write+0x8d/0xe0 vfs_write+0x2cf/0xdd0 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f5a71c19b19 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:00007f5a6f18f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f5a71d2cf60 RCX: 00007f5a71c19b19 RDX: 000000000000002b RSI: 0000000020000380 RDI: 0000000000000007 RBP: 00007f5a71c73f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff945f7c2f R14: 00007f5a6f18f300 R15: 0000000000022000 irq event stamp: 18169 hardirqs last enabled at (18231): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (18282): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (17654): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (16257): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- SELinux: security_context_str_to_sid (sgesize_kB=4 7f10b2962000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2b62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2d62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2f62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3162000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3362000 default file=/sys/kernel/debug/kcov dirty=10 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3562000 default file=/sys/kernel/debug/kcov dirty=117 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.5 not setting count and/or reply_len properly SELinux: security_context_str_to_sid (sgesize_kB=4 7f10b2962000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2b62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2d62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2f62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3162000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3362000 default file=/sys/kernel/debug/kcov dirty=10 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3562000 default file=/sys/kernel/debug/kcov dirty=117 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 SELinux: security_context_str_to_sid (sgesize_kB=4 7f2d69b2e000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d69d2e000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d69f2e000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a12e000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a32e000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a52e000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a72e000 default file=/sys/kernel/debug/kcov dirty=45 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.5 not setting count and/or reply_len properly 9pnet_fd: Insufficient options for proto=fd sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly SELinux: security_context_str_to_sid (sgesize_kB=4 7f10b2962000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2b62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2d62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2f62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3162000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3362000 default file=/sys/kernel/debug/kcov dirty=10 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3562000 default file=/sys/kernel/debug/kcov dirty=117 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 SELinux: security_context_str_to_sid (sgesize_kB=4 7f2d69b2e000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d69d2e000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d69f2e000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a12e000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a32e000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a52e000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a72e000 default file=/sys/kernel/debug/kcov dirty=45 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.2 not setting count and/or reply_len properly SELinux: security_context_str_to_sid (sgesize_kB=4 7f10b2962000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2b62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2d62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b2f62000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3162000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3362000 default file=/sys/kernel/debug/kcov dirty=10 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 7f10b3562000 default file=/sys/kernel/debug/kcov dirty=117 mapped=512 mapmax=4 active=0 N0=512 kernelpagesize_kB=4 sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.5 not setting count and/or reply_len properly sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.2 not setting count and/or reply_len properly sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.3 not setting count and/or reply_len properly SELinux: security_context_str_to_sid (sgesize_kB=4 7f2d69b2e000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d69d2e000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d69f2e000 default file=/sys/kernel/debug/kcov mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a12e000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a32e000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a52e000 default file=/sys/kernel/debug/kcov dirty=1 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 7f2d6a72e000 default file=/sys/kernel/debug/kcov dirty=45 mapped=512 mapmax=3 active=0 N0=512 kernelpagesize_kB=4 sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.2 not setting count and/or reply_len properly audit: type=1400 audit(1673438864.321:14): avc: denied { relabelfrom } for pid=8114 comm="syz-executor.3" name="" dev="pipefs" ino=26853 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=fifo_file permissive=1 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 08 00 blk_print_req_error: 28 callbacks suppressed I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 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 buffer_io_error: 38 callbacks suppressed Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 7 prio class 2 Buffer I/O error on dev sr0, logical block 1, async page read Buffer I/O error on dev sr0, logical block 2, async page read Buffer I/O error on dev sr0, logical block 3, async page read Buffer I/O error on dev sr0, logical block 4, async page read Buffer I/O error on dev sr0, logical block 5, async page read Buffer I/O error on dev sr0, logical block 6, async page read Buffer I/O error on dev sr0, logical block 7, async page read 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 Buffer I/O error on dev sr0, logical block 0, async page read 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 Buffer I/O error on dev sr0, logical block 1, async page read 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 I/O error, dev sr0, sector 6 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 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 08 00 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer