SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=4416 comm=syz-executor.0 general protection fault, probably for non-canonical address 0xdffffc0004000020: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000100-0x0000000020000107] CPU: 0 PID: 4423 Comm: syz-executor.6 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_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff88801f1efc78 EFLAGS: 00010212 RAX: 0000000020000100 RBX: ffff88801f1efd60 RCX: ffffc90005df6000 RDX: 0000000004000020 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 00000000000000a5 R08: 0000000000000007 R09: 0000000000000000 R10: 00000000000000a5 R11: 0000000000000001 R12: ffff888015988a00 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8491de20 FS: 00007fa780929700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c821000 CR3: 000000001a300000 CR4: 0000000000350ef0 Call Trace: vfs_readv+0xe5/0x160 __x64_sys_preadv+0x233/0x310 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fa7833b3b19 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:00007fa780929188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00007fa7834c6f60 RCX: 00007fa7833b3b19 RDX: 0000000000000001 RSI: 0000000020000640 RDI: 0000000000000003 RBP: 00007fa78340df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffcce12c8f R14: 00007fa780929300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff88801f1efc78 EFLAGS: 00010212 RAX: 0000000020000100 RBX: ffff88801f1efd60 RCX: ffffc90005df6000 RDX: 0000000004000020 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 00000000000000a5 R08: 0000000000000007 R09: 0000000000000000 R10: 00000000000000a5 R11: 0000000000000001 R12: ffff888015988a00 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8491de20 FS: 00007fa780929700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c821000 CR3: 000000001a300000 CR4: 0000000000350ef0 loop0: detected capacity change from 0 to 40 platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop0, logical block 10, lost async page write syz-executor.6 (4446) used greatest stack depth: 23256 bytes left platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 loop0: detected capacity change from 0 to 40 platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop0, logical block 10, lost async page write platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 loop0: detected capacity change from 0 to 40 platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 audit: type=1400 audit(1679917162.918:11): avc: denied { relabelto } for pid=4528 comm="syz-executor.6" name="file1" dev="sda" ino=15995 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:framebuf_device_t:s0 tclass=file permissive=1 No source specified No source specified syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop0, logical block 10, lost async page write loop0: detected capacity change from 0 to 40 syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop0, logical block 10, lost async page write 9pnet: Could not find request transport: rdma 9pnet: Could not find request transport: rdma 9pnet: Could not find request transport: rdma 9pnet: Could not find request transport: rdma 9pnet: Could not find request transport: rdma 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.3'. SELinux: security_context_str_to_sid () failed with errno=-22 SELinux: security_context_str_to_sid () failed with errno=-22 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. SELinux: security_context_str_to_sid () failed with errno=-22 SELinux: security_context_str_to_sid () failed with errno=-22 SELinux: security_context_str_to_sid () failed with errno=-22 loop0: detected capacity change from 0 to 512 loop6: detected capacity change from 0 to 40 EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write loop6: detected capacity change from 0 to 40 loop0: detected capacity change from 0 to 512 EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write loop6: detected capacity change from 0 to 40 syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write loop6: detected capacity change from 0 to 40 syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=5001 comm=syz-executor.2 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 2 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 02 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 8 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read Buffer I/O error on dev sr0, logical block 1, async page read Buffer I/O error on dev sr0, logical block 2, async page read Buffer I/O error on dev sr0, logical block 3, async page read Buffer I/O error on dev sr0, logical block 4, async page read netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer ---------------- Code disassembly (best guess): 0: 00 0f add %cl,(%rdi) 2: 85 52 02 test %edx,0x2(%rdx) 5: 00 00 add %al,(%rax) 7: 4d 8b 7c 24 28 mov 0x28(%r12),%r15 c: e8 48 2c c6 ff callq 0xffc62c59 11: 48 8b 44 24 18 mov 0x18(%rsp),%rax 16: 80 38 00 cmpb $0x0,(%rax) 19: 0f 85 1c 02 00 00 jne 0x23b 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 ef 01 00 00 jne 0x224 35: 48 8b 4c 24 20 mov 0x20(%rsp),%rcx 3a: 48 8b 30 mov (%rax),%rsi 3d: 80 39 00 cmpb $0x0,(%rcx)