audit: type=1400 audit(1679915294.311:7): avc: denied { open } for pid=3762 comm="syz-executor.4" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 audit: type=1400 audit(1679915294.311:8): avc: denied { kernel } for pid=3762 comm="syz-executor.4" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 general protection fault, probably for non-canonical address 0xdffffc0004000048: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000240-0x0000000020000247] CPU: 0 PID: 3763 Comm: syz-executor.4 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:ffff88801a047c70 EFLAGS: 00010216 RAX: 0000000020000240 RBX: ffff88801a047d58 RCX: ffffc90005200000 RDX: 0000000004000048 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 000000000000002b R08: 0000000000000007 R09: 0000000000000000 R10: 000000000000002b R11: 0000000000000001 R12: ffff88800ed2f680 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007ff65b49d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff65e037000 CR3: 000000001a5bc000 CR4: 0000000000350ef0 Call Trace: vfs_readv+0xe5/0x160 do_readv+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ff65df27b19 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:00007ff65b49d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007ff65e03af60 RCX: 00007ff65df27b19 RDX: 0000000000000001 RSI: 0000000020000300 RDI: 0000000000000004 RBP: 00007ff65df81f6d R08: 0000000000000000 R09: 0000000000000000 wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 R13: 00007fff6e4da06f R14: 00007ff65b49d300 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:ffff88801a047c70 EFLAGS: 00010216 RAX: 0000000020000240 RBX: ffff88801a047d58 RCX: ffffc90005200000 RDX: 0000000004000048 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 000000000000002b R08: 0000000000000007 R09: 0000000000000000 R10: 000000000000002b R11: 0000000000000001 R12: ffff88800ed2f680 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007ff65b49d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff65e037000 CR3: 000000001a5bc000 CR4: 0000000000350ef0 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ieee80211 phy9: Selected rate control algorithm 'minstrel_ht' audit: type=1400 audit(1679915294.551:9): avc: denied { write } for pid=3776 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready general protection fault, probably for non-canonical address 0xdffffc0004000048: 0000 [#2] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000240-0x0000000020000247] CPU: 0 PID: 3831 Comm: syz-executor.4 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_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:ffff88803becfc70 EFLAGS: 00010216 RAX: 0000000020000240 RBX: ffff88803becfd58 RCX: ffffc90007411000 RDX: 0000000004000048 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 000000000000002b R08: 0000000000000007 R09: 0000000000000000 R10: 000000000000002b R11: 0000000000000001 R12: ffff88800d745900 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007ff65b45b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff65b45b718 CR3: 000000001a5bc000 CR4: 0000000000350ef0 Call Trace: vfs_readv+0xe5/0x160 do_readv+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ff65df27b19 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:00007ff65b45b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007ff65e03b0e0 RCX: 00007ff65df27b19 RDX: 0000000000000001 RSI: 0000000020000300 RDI: 0000000000000004 RBP: 00007ff65df81f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff6e4da06f R14: 00007ff65b45b300 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:ffff88801a047c70 EFLAGS: 00010216 RAX: 0000000020000240 RBX: ffff88801a047d58 RCX: ffffc90005200000 RDX: 0000000004000048 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 000000000000002b R08: 0000000000000007 R09: 0000000000000000 R10: 000000000000002b R11: 0000000000000001 R12: ffff88800ed2f680 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007ff65b45b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff65b45b718 CR3: 000000001a5bc000 CR4: 0000000000350ef0 ieee80211 phy10: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 ieee80211 phy11: Selected rate control algorithm 'minstrel_ht' IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ieee80211 phy12: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready ieee80211 phy13: Selected rate control algorithm 'minstrel_ht' wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready ieee80211 phy14: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ieee80211 phy15: Selected rate control algorithm 'minstrel_ht' wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=3913 'syz-executor.6' loop6: detected capacity change from 0 to 512 EXT4-fs (loop6): ext4_check_descriptors: Inode table for group 0 not in group (block 3556769792)! EXT4-fs (loop6): group descriptors corrupted! I/O error, dev loop6, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev loop6, logical block 0, async page read I/O error, dev loop6, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 loop6: detected capacity change from 0 to 512 Buffer I/O error on dev loop6, logical block 3, async page read EXT4-fs (loop6): ext4_check_descriptors: Inode table for group 0 not in group (block 3556769792)! EXT4-fs (loop6): group descriptors corrupted! ieee80211 phy16: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ieee80211 phy17: Selected rate control algorithm 'minstrel_ht' wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready loop6: detected capacity change from 0 to 512 EXT4-fs (loop6): ext4_check_descriptors: Inode table for group 0 not in group (block 3556769792)! EXT4-fs (loop6): group descriptors corrupted! hrtimer: interrupt took 18986 ns loop6: detected capacity change from 0 to 512 EXT4-fs (loop6): ext4_check_descriptors: Inode table for group 0 not in group (block 3556769792)! EXT4-fs (loop6): group descriptors corrupted! loop6: detected capacity change from 0 to 512 EXT4-fs (loop6): ext4_check_descriptors: Inode table for group 0 not in group (block 3556769792)! EXT4-fs (loop6): group descriptors corrupted! loop3: detected capacity change from 0 to 40 syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop3, logical block 10, lost async page write loop3: detected capacity change from 0 to 40 syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop3, logical block 10, lost async page write loop3: detected capacity change from 0 to 40 syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop3, logical block 10, lost async page write loop5: detected capacity change from 0 to 40 loop3: detected capacity change from 0 to 40 syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop3, logical block 10, lost async page write syz-executor.5: attempt to access beyond end of device loop5: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop5, logical block 10, lost async page write loop3: detected capacity change from 0 to 40 loop5: detected capacity change from 0 to 40 syz-executor.5: attempt to access beyond end of device loop5: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop5, logical block 10, lost async page write syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop3, logical block 10, lost async page write audit: type=1400 audit(1679915301.963:10): avc: denied { block_suspend } for pid=4262 comm="syz-executor.1" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 loop5: detected capacity change from 0 to 40 loop3: detected capacity change from 0 to 40 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=45 sclass=netlink_tcpdiag_socket pid=4278 comm=syz-executor.4 syz-executor.5: attempt to access beyond end of device loop5: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop5, logical block 10, lost async page write syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop3, logical block 10, lost async page write loop3: detected capacity change from 0 to 40 FAT-fs (loop4): Unrecognized mount option "./file0" or missing value syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop3, logical block 10, lost async page write FAT-fs (loop3): bogus number of reserved sectors FAT-fs (loop3): Can't find a valid FAT filesystem SELinux: unrecognized netlink message: protocol=4 nlmsg_type=45 sclass=netlink_tcpdiag_socket pid=4324 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=45 sclass=netlink_tcpdiag_socket pid=4331 comm=syz-executor.4 general protection fault, probably for non-canonical address 0xdffffc0004000028: 0000 [#3] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000140-0x0000000020000147] CPU: 1 PID: 4329 Comm: syz-executor.6 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_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:ffff88803e9dfc78 EFLAGS: 00010216 RAX: 0000000020000140 RBX: ffff88803e9dfd60 RCX: ffffc90006c0d000 RDX: 0000000004000028 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000001000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000001000 R11: 0000000000000001 R12: ffff88800e0a1680 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8491c9e0 FS: 00007fcd4fea5700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007eff307104a1 CR3: 000000003beda000 CR4: 0000000000350ee0 Call Trace: vfs_readv+0xe5/0x160 __x64_sys_preadv+0x233/0x310 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fcd5292fb19 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:00007fcd4fea5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00007fcd52a42f60 RCX: 00007fcd5292fb19 RDX: 0000000000000001 RSI: 0000000020001140 RDI: 0000000000000005 RBP: 00007fcd52989f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdd0b0dd8f R14: 00007fcd4fea5300 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:ffff88801a047c70 EFLAGS: 00010216 RAX: 0000000020000240 RBX: ffff88801a047d58 RCX: ffffc90005200000 RDX: 0000000004000048 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 000000000000002b R08: 0000000000000007 R09: 0000000000000000 R10: 000000000000002b R11: 0000000000000001 R12: ffff88800ed2f680 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007fcd4fea5700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007eff307104a1 CR3: 000000003beda000 CR4: 0000000000350ee0 loop2: detected capacity change from 0 to 64 FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO loop2: detected capacity change from 0 to 64 FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop3): bogus number of reserved sectors FAT-fs (loop3): Can't find a valid FAT filesystem SELinux: unrecognized netlink message: protocol=4 nlmsg_type=45 sclass=netlink_tcpdiag_socket pid=4341 comm=syz-executor.3 FAT-fs (loop4): Unrecognized mount option "./file0" or missing value program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO FAT-fs (loop4): bogus number of reserved sectors FAT-fs (loop4): Can't find a valid FAT filesystem loop2: detected capacity change from 0 to 64 FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) SELinux: unrecognized netlink message: protocol=4 nlmsg_type=45 sclass=netlink_tcpdiag_socket pid=4366 comm=syz-executor.4 general protection fault, probably for non-canonical address 0xdffffc0004000028: 0000 [#4] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000140-0x0000000020000147] CPU: 1 PID: 4337 Comm: syz-executor.6 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_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:ffff88803ea77c78 EFLAGS: 00010216 RAX: 0000000020000140 RBX: ffff88803ea77d60 RCX: ffffc90007a14000 RDX: 0000000004000028 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000001000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000001000 R11: 0000000000000001 R12: ffff888018c86f00 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8491c9e0 FS: 00007fcd4fe84700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd4fe41ff8 CR3: 000000003beda000 CR4: 0000000000350ee0 Call Trace: vfs_readv+0xe5/0x160 __x64_sys_preadv+0x233/0x310 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fcd5292fb19 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:00007fcd4fe84188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00007fcd52a43020 RCX: 00007fcd5292fb19 RDX: 0000000000000001 RSI: 0000000020001140 RDI: 0000000000000004 RBP: 00007fcd52989f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdd0b0dd8f R14: 00007fcd4fe84300 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:ffff88801a047c70 EFLAGS: 00010216 RAX: 0000000020000240 RBX: ffff88801a047d58 RCX: ffffc90005200000 RDX: 0000000004000048 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 000000000000002b R08: 0000000000000007 R09: 0000000000000000 R10: 000000000000002b R11: 0000000000000001 R12: ffff88800ed2f680 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007fcd4fe84700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd4fe41ff8 CR3: 000000003beda000 CR4: 0000000000350ee0 ---------------- 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)