ext4: Unknown parameter 'smackfshat' 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 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5131 at lib/iov_iter.c:376 _copy_from_iter+0x2bf/0x1200 Modules linked in: CPU: 1 PID: 5131 Comm: syz-executor.1 Not tainted 6.3.0-rc6-next-20230413 #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 c5 94 35 02 e8 dc 87 36 ff be 7c 01 00 00 48 c7 c7 40 cd 9e 84 e8 cb 93 5a ff e9 48 fe ff ff e8 c1 87 36 ff <0f> 0b 45 31 f6 eb 87 e8 b5 87 36 ff 31 ff 89 ee e8 ec 82 36 ff 40 RSP: 0018:ffff888045a67608 EFLAGS: 00010216 RAX: 000000000000ceee RBX: 0000000000000000 RCX: ffffc900033f1000 RDX: 0000000000040000 RSI: ffffffff82153edf RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888045a67838 R13: ffffea0001100c00 R14: 0000000000001000 R15: ffff888045a67838 FS: 00007f8a50bee700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f90a26bc52c CR3: 0000000043692000 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+0x2d8/0xdc0 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f8a53678b19 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:00007f8a50bee188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8a5378bf60 RCX: 00007f8a53678b19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000006 RBP: 00007f8a536d2f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdb4a758bf R14: 00007f8a50bee300 R15: 0000000000022000 irq event stamp: 7437 hardirqs last enabled at (7471): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (7498): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4188): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (4095): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 5172 Comm: syz-executor.3 Tainted: G W 6.3.0-rc6-next-20230413 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xc1/0xf0 should_fail_ex+0x4b4/0x5b0 should_failslab+0x9/0x20 kmem_cache_alloc_node+0x5d/0x3a0 __alloc_skb+0x28c/0x330 alloc_skb_with_frags+0x99/0x630 sock_alloc_send_pskb+0x7d2/0x960 unix_dgram_sendmsg+0x41b/0x18a0 sock_sendmsg+0x1b6/0x200 ____sys_sendmsg+0x337/0x980 ___sys_sendmsg+0x110/0x1b0 __sys_sendmmsg+0x18f/0x460 __x64_sys_sendmmsg+0x9d/0x110 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fca226f9b19 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:00007fca1fc6f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fca2280cf60 RCX: 00007fca226f9b19 RDX: 03ffffffffffff13 RSI: 00000000200006c0 RDI: 0000000000000003 RBP: 00007fca1fc6f1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000033fe0 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd5a37d41f R14: 00007fca1fc6f300 R15: 0000000000022000 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 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5189 comm=syz-executor.1