sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.1 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 0 PID: 10172 at lib/iov_iter.c:364 _copy_from_iter+0x2b2/0x1140 Modules linked in: CPU: 0 PID: 10172 Comm: syz-executor.1 Not tainted 6.2.0-rc8-next-20230214 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2b2/0x1140 Code: 5d 41 5e 41 5f e9 f2 7c 33 02 e8 49 eb 35 ff be 70 01 00 00 48 c7 c7 20 d2 9e 84 e8 c8 c4 59 ff e9 51 fe ff ff e8 2e eb 35 ff <0f> 0b 45 31 f6 eb 87 e8 22 eb 35 ff 31 ff 89 ee e8 89 e6 35 ff 40 RSP: 0018:ffff888037987608 EFLAGS: 00010202 RAX: 0000000000001750 RBX: 0000000000000000 RCX: ffffc900029ec000 RDX: 0000000000040000 RSI: ffffffff82158fb2 RDI: 0000000000000001 RBP: 0000000000000390 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888037987838 R14: 0000000000000390 R15: ffff888037987838 FS: 00007f004c3d9700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d82c000 CR3: 000000003eafa000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: copy_page_from_iter+0x251/0x430 blk_rq_map_user_iov+0xb41/0x16c0 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+0x2cf/0xdc0 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f004ee63b19 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:00007f004c3d9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f004ef76f60 RCX: 00007f004ee63b19 RDX: 000000000000002b RSI: 0000000020000380 RDI: 0000000000000007 RBP: 00007f004eebdf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc715db48f R14: 00007f004c3d9300 R15: 0000000000022000 irq event stamp: 11243 hardirqs last enabled at (11291): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (11346): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (11132): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (10143): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- random: crng reseeded on system resumption Restarting kernel threads ... done. random: crng reseeded on system resumption sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.1 not setting count and/or reply_len properly random: crng reseeded on system resumption Restarting kernel threads ... done. random: crng reseeded on system resumption random: crng reseeded on system resumption 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.4 not setting count and/or reply_len properly audit: type=1326 audit(1676373126.153:11): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10313 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f55f0a45b19 code=0x0 audit: type=1326 audit(1676373126.197:12): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10313 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=3 compat=0 ip=0x7f55f09f872b code=0x0 audit: type=1326 audit(1676373126.304:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10332 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f55f0a45b19 code=0x0 audit: type=1326 audit(1676373126.353:14): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10332 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=3 compat=0 ip=0x7f55f09f872b code=0x0 audit: type=1326 audit(1676373126.396:15): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10336 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f004ee63b19 code=0x0 audit: type=1326 audit(1676373126.443:16): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10336 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=3 compat=0 ip=0x7f004ee1672b code=0x0 audit: type=1326 audit(1676373126.574:17): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10351 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f004ee63b19 code=0x0 audit: type=1326 audit(1676373126.578:18): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10350 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f55f0a45b19 code=0x0 audit: type=1326 audit(1676373126.622:19): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10351 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=3 compat=0 ip=0x7f004ee1672b code=0x0 audit: type=1326 audit(1676373126.625:20): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10350 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=3 compat=0 ip=0x7f55f09f872b code=0x0 netlink: 'syz-executor.7': attribute type 16 has an invalid length. netlink: 'syz-executor.7': attribute type 16 has an invalid length. netlink: 'syz-executor.7': attribute type 16 has an invalid length. netlink: 'syz-executor.7': attribute type 16 has an invalid length. netlink: 'syz-executor.7': attribute type 16 has an invalid length.