random: crng reseeded on system resumption Restarting kernel threads ... done. general protection fault, probably for non-canonical address 0xdffffc0004000090: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000480-0x0000000020000487] CPU: 1 PID: 4232 Comm: syz-executor.7 Not tainted 6.3.0-rc3-next-20230327 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_iter_write+0x477/0x700 Code: 00 0f 85 fd 01 00 00 4d 8b 7c 24 28 e8 d2 05 c6 ff 48 8b 44 24 18 80 38 00 0f 85 68 01 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 3b 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880432a7c68 EFLAGS: 00010216 RAX: 0000000020000480 RBX: ffff8880432a7d58 RCX: ffffc90007813000 RDX: 0000000004000090 RSI: ffffffff8185830e RDI: 0000000000000007 RBP: 0000000000000008 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000001 R12: ffff88800dfd6000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84911240 FS: 00007fb9f0d55700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c22c000 CR3: 0000000019dc6000 CR4: 0000000000350ee0 Call Trace: vfs_writev+0x1ae/0x660 do_writev+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fb9f37dfb19 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:00007fb9f0d55188 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007fb9f38f2f60 RCX: 00007fb9f37dfb19 RDX: 0000000000000001 RSI: 0000000020000180 RDI: 0000000000000004 RBP: 00007fb9f3839f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffde8f9fdf R14: 00007fb9f0d55300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_write+0x477/0x700 Code: 00 0f 85 fd 01 00 00 4d 8b 7c 24 28 e8 d2 05 c6 ff 48 8b 44 24 18 80 38 00 0f 85 68 01 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 3b 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880432a7c68 EFLAGS: 00010216 RAX: 0000000020000480 RBX: ffff8880432a7d58 RCX: ffffc90007813000 RDX: 0000000004000090 RSI: ffffffff8185830e RDI: 0000000000000007 RBP: 0000000000000008 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000001 R12: ffff88800dfd6000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84911240 FS: 00007fb9f0d55700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c22c000 CR3: 0000000019dc6000 CR4: 0000000000350ee0 random: crng reseeded on system resumption Restarting kernel threads ... done. random: crng reseeded on system resumption Restarting kernel threads ... done. SELinux: unrecognized netlink message: protocol=4 nlmsg_type=2564 sclass=netlink_tcpdiag_socket pid=4253 comm=syz-executor.1 general protection fault, probably for non-canonical address 0xdffffc0004000090: 0000 [#2] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000480-0x0000000020000487] CPU: 1 PID: 4262 Comm: syz-executor.7 Tainted: G D 6.3.0-rc3-next-20230327 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_iter_write+0x477/0x700 Code: 00 0f 85 fd 01 00 00 4d 8b 7c 24 28 e8 d2 05 c6 ff 48 8b 44 24 18 80 38 00 0f 85 68 01 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 3b 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff888044257c68 EFLAGS: 00010216 RAX: 0000000020000480 RBX: ffff888044257d58 RCX: ffffc90009e26000 RDX: 0000000004000090 RSI: ffffffff8185830e RDI: 0000000000000007 RBP: 0000000000000008 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000001 R12: ffff88801c470000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84911240 FS: 00007fb9f0d13700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffdb493000 CR3: 0000000019dc6000 CR4: 0000000000350ee0 Call Trace: vfs_writev+0x1ae/0x660 do_writev+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fb9f37dfb19 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:00007fb9f0d13188 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007fb9f38f30e0 RCX: 00007fb9f37dfb19 RDX: 0000000000000001 RSI: 0000000020000180 RDI: 0000000000000004 RBP: 00007fb9f3839f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffde8f9fdf R14: 00007fb9f0d13300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_write+0x477/0x700 Code: 00 0f 85 fd 01 00 00 4d 8b 7c 24 28 e8 d2 05 c6 ff 48 8b 44 24 18 80 38 00 0f 85 68 01 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 3b 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880432a7c68 EFLAGS: 00010216 RAX: 0000000020000480 RBX: ffff8880432a7d58 RCX: ffffc90007813000 RDX: 0000000004000090 RSI: ffffffff8185830e RDI: 0000000000000007 RBP: 0000000000000008 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000001 R12: ffff88800dfd6000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84911240 FS: 00007fb9f0d13700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffdb493000 CR3: 0000000019dc6000 CR4: 0000000000350ee0 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=2564 sclass=netlink_tcpdiag_socket pid=4283 comm=syz-executor.1 audit: type=1326 audit(1679919739.205:10): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4284 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fac810f3b19 code=0x0 audit: type=1326 audit(1679919740.031:11): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4284 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fac810f3b19 code=0x0 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=2564 sclass=netlink_tcpdiag_socket pid=4309 comm=syz-executor.1 audit: type=1326 audit(1679919740.181:12): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4307 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fac810f3b19 code=0x0 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=2564 sclass=netlink_tcpdiag_socket pid=4331 comm=syz-executor.1 audit: type=1326 audit(1679919741.123:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4346 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fac810f3b19 code=0x0 audit: type=1326 audit(1679919742.058:14): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4376 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fac810f3b19 code=0x0 EXT4-fs: journaled quota format not specified EXT4-fs: journaled quota format not specified 9pnet_fd: Insufficient options for proto=fd audit: type=1400 audit(1679919747.205:15): avc: denied { block_suspend } for pid=4623 comm="syz-executor.2" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 ---------------- Code disassembly (best guess): 0: 00 0f add %cl,(%rdi) 2: 85 fd test %edi,%ebp 4: 01 00 add %eax,(%rax) 6: 00 4d 8b add %cl,-0x75(%rbp) 9: 7c 24 jl 0x2f b: 28 e8 sub %ch,%al d: d2 05 c6 ff 48 8b rolb %cl,-0x74b7003a(%rip) # 0x8b48ffd9 13: 44 24 18 rex.R and $0x18,%al 16: 80 38 00 cmpb $0x0,(%rax) 19: 0f 85 68 01 00 00 jne 0x187 1f: 48 8b 43 18 mov 0x18(%rbx),%rax 23: 48 89 c2 mov %rax,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 42 80 3c 32 00 cmpb $0x0,(%rdx,%r14,1) <-- trapping instruction 2f: 0f 85 3b 01 00 00 jne 0x170 35: 48 8b 4c 24 20 mov 0x20(%rsp),%rcx 3a: 48 8b 30 mov (%rax),%rsi 3d: 80 39 00 cmpb $0x0,(%rcx)