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: 5333 at lib/iov_iter.c:376 _copy_from_iter+0x2bf/0x1200 Modules linked in: CPU: 1 PID: 5333 Comm: syz-executor.0 Not tainted 6.3.0-rc6-next-20230411 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2bf/0x1200 Code: 5d 41 5e 41 5f e9 55 60 35 02 e8 5c 74 36 ff be 7c 01 00 00 48 c7 c7 a0 cd 9e 84 e8 4b 7f 5a ff e9 48 fe ff ff e8 41 74 36 ff <0f> 0b 45 31 f6 eb 87 e8 35 74 36 ff 31 ff 89 ee e8 6c 6f 36 ff 40 RSP: 0018:ffff88803a85f608 EFLAGS: 00010216 RAX: 0000000000003c1f RBX: 0000000000000000 RCX: ffffc90002eea000 RDX: 0000000000040000 RSI: ffffffff8215430f RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803a85f838 R13: ffffea0000e49c00 R14: 0000000000001000 R15: ffff88803a85f838 FS: 00007f858179c700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f022000 CR3: 000000001cc54000 CR4: 0000000000350ee0 Call Trace: copy_page_from_iter+0xe3/0x180 blk_rq_map_user_iov+0xb39/0x16c0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5338 comm=syz-executor.0 blk_rq_map_user_io+0x1d1/0x200 sg_common_write.constprop.0+0xd8d/0x15f0 sg_write.part.0+0x698/0xac0 audit: type=1400 audit(1681210268.527:10): avc: denied { read } for pid=5325 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 sg_write+0x8d/0xe0 vfs_write+0x2d8/0xdc0 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f8584226b19 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:00007f858179c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8584339f60 RCX: 00007f8584226b19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005 RBP: 00007f8584280f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc79e62e2f R14: 00007f858179c300 R15: 0000000000022000 irq event stamp: 11003 hardirqs last enabled at (11243): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (11374): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (2544): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (2521): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- Bluetooth: hci0: command 0x0c1a tx timeout SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5347 comm=syz-executor.0 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5384 comm=syz-executor.0 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 not setting count and/or reply_len properly netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5396 comm=syz-executor.6 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5400 comm=syz-executor.5 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.4 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5418 comm=syz-executor.0 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5408 comm=syz-executor.4 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=5417 comm=syz-executor.5 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.7 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.2 not setting count and/or reply_len properly Bluetooth: hci0: command 0x0c1a tx timeout SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5428 comm=syz-executor.2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5432 comm=syz-executor.1 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.1 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.4 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.6 not setting count and/or reply_len properly audit: type=1400 audit(1681210272.706:11): avc: denied { write } for pid=5533 comm="syz-executor.6" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 loop0: detected capacity change from 0 to 136 loop0: detected capacity change from 0 to 136 lo: entered promiscuous mode lo: entered allmulticast mode loop7: detected capacity change from 0 to 4096 EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback. loop0: detected capacity change from 0 to 136 EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop0: detected capacity change from 0 to 136 loop7: detected capacity change from 0 to 4096 EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback. EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop7: detected capacity change from 0 to 4096 lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback. EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop7: detected capacity change from 0 to 4096 lo: entered promiscuous mode lo: entered allmulticast mode EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback. lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. lo: left promiscuous mode lo: left allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode