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: 1 PID: 22119 at lib/iov_iter.c:385 _copy_from_iter+0x2f1/0x1320
Modules linked in:
CPU: 1 PID: 22119 Comm: syz-executor.2 Not tainted 6.4.0-rc3-next-20230524 #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 c3 35 ff be 85 01 00 00 48 c7 c7 40 e6 9e 84 e8 39 16 5a ff e9 13 fe ff ff e8 bf c3 35 ff <0f> 0b 45 31 f6 e9 67 ff ff ff e8 b0 c3 35 ff 31 ff 89 ee e8 e7 be
RSP: 0018:ffff888033417608 EFLAGS: 00010202
RAX: 00000000000046f0 RBX: 0000000000000000 RCX: ffffc90000dde000
RDX: 0000000000040000 RSI: ffffffff82163ae1 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000
R13: ffffea0000f6a200 R14: 0000000000001000 R15: ffff888033417838
FS: 00007fb82c9a4700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fe22000 CR3: 00000000353b6000 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+0x72/0xdc
RIP: 0033:0x7fb82f42eb19
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:00007fb82c9a4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fb82f541f60 RCX: 00007fb82f42eb19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007fb82f488f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff9ea840ff R14: 00007fb82c9a4300 R15: 0000000000022000
irq event stamp: 6803
hardirqs last enabled at (6835): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (6868): [] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last enabled at (5394): [] irq_exit_rcu+0x93/0xc0
softirqs last disabled at (5345): [] irq_exit_rcu+0x93/0xc0
---[ end trace 0000000000000000 ]---
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=22119 comm=syz-executor.2
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=22121 comm=syz-executor.2
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=22142 comm=syz-executor.3
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=22149 comm=syz-executor.2
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=22164 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=22171 comm=syz-executor.2
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
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=22189 comm=syz-executor.2
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=22193 comm=syz-executor.3
loop2: detected capacity change from 0 to 512
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 not in group (block 3432526402)!
EXT4-fs (loop2): group descriptors corrupted!
loop2: detected capacity change from 0 to 512
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 not in group (block 3432526402)!
EXT4-fs (loop2): group descriptors corrupted!
loop2: detected capacity change from 0 to 512
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 not in group (block 3432526402)!
EXT4-fs (loop2): group descriptors corrupted!
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8 r/w. Quota mode: none.
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8 r/w. Quota mode: none.
syz_tun: entered promiscuous mode
syz_tun: left promiscuous mode
audit: type=1400 audit(1684926492.902:28): avc: denied { watch_reads } for pid=22316 comm="syz-executor.0" path="/dev/bsg" dev="devtmpfs" ino=113 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:device_t:s0 tclass=dir permissive=1
syz_tun: entered promiscuous mode
syz_tun: left promiscuous mode