sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.2 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4891 at lib/iov_iter.c:385 _copy_from_iter+0x2b2/0x1330
Modules linked in:
CPU: 0 PID: 4891 Comm: syz-executor.2 Not tainted 6.3.0-rc7-next-20230421 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2b2/0x1330
Code: 5d 41 5e 41 5f e9 c2 86 36 02 e8 b9 5a 36 ff be 85 01 00 00 48 c7 c7 40 cf 9e 84 e8 98 6c 5a ff e9 51 fe ff ff e8 9e 5a 36 ff <0f> 0b 45 31 f6 eb 87 e8 92 5a 36 ff 31 ff 89 ee e8 c9 55 36 ff 40
RSP: 0018:ffff88803f837608 EFLAGS: 00010216
RAX: 0000000000003cec RBX: 0000000000000000 RCX: ffffc90005801000
RDX: 0000000000040000 RSI: ffffffff82157ce2 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000
R13: ffff88803f837838 R14: 0000000000001000 R15: ffff88803f837838
FS: 00007ff9ecc20700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff9ecbde718 CR3: 0000000015fbe000 CR4: 0000000000350ef0
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+0x2d8/0xdd0
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7ff9ef6ecb19
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:00007ff9ecc20188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff9ef8000e0 RCX: 00007ff9ef6ecb19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000004
RBP: 00007ff9ef746f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb036169f R14: 00007ff9ecc20300 R15: 0000000000022000
irq event stamp: 923
hardirqs last enabled at (933): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (944): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (306): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (257): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.2 not setting count and/or reply_len properly
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4908 comm=syz-executor.2
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4926 comm=syz-executor.1
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.2 not setting count and/or reply_len properly
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4939 comm=syz-executor.2
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4944 comm=syz-executor.5
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4945 comm=syz-executor.1
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4946 comm=syz-executor.0
loop7: detected capacity change from 0 to 40
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.2 not setting count and/or reply_len properly
loop7: detected capacity change from 0 to 40
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4951 comm=syz-executor.2
loop7: detected capacity change from 0 to 40
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4963 comm=syz-executor.5
loop7: detected capacity change from 0 to 40
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4965 comm=syz-executor.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.5 not setting count and/or reply_len properly
audit: type=1400 audit(1682129007.930:20): avc: denied { watch_reads } for pid=5062 comm="syz-executor.5" path="/syzkaller-testdir959007358/syzkaller.cDe5Vo/67" dev="sda" ino=15980 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=dir permissive=1
audit: type=1326 audit(1682129007.942:21): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5074 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa741b24b19 code=0x0
syz-executor.5 (5076) used greatest stack depth: 23712 bytes left
syz-executor.5 (5068) used greatest stack depth: 23472 bytes left
audit: type=1326 audit(1682129010.309:22): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5096 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa741b24b19 code=0x0
audit: type=1326 audit(1682129010.439:23): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5123 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa741b24b19 code=0x0
audit: type=1326 audit(1682129012.618:24): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5139 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa741b24b19 code=0x0