syzkaller syzkaller login: [ 16.511364][ T24] kauditd_printk_skb: 25 callbacks suppressed [ 16.511377][ T24] audit: type=1400 audit(1786244530.210:59): avc: denied { transition } for pid=217 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 16.522742][ T24] audit: type=1400 audit(1786244530.210:60): avc: denied { noatsecure } for pid=217 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 16.530644][ T24] audit: type=1400 audit(1786244530.220:61): avc: denied { write } for pid=217 comm="sh" path="pipe:[1398]" dev="pipefs" ino=1398 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 16.551522][ T24] audit: type=1400 audit(1786244530.220:62): avc: denied { rlimitinh } for pid=217 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 16.570863][ T24] audit: type=1400 audit(1786244530.220:63): avc: denied { siginh } for pid=217 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.242' (ED25519) to the list of known hosts. 2026/08/09 03:02:20 parsed 1 programs 2026/08/09 03:02:20 serving rpc on tcp://37439 [ 26.570311][ T24] audit: type=1400 audit(1786244540.270:64): avc: denied { node_bind } for pid=287 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 26.591480][ T24] audit: type=1400 audit(1786244540.270:65): avc: denied { create } for pid=287 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 26.611038][ T24] audit: type=1400 audit(1786244540.270:66): avc: denied { module_request } for pid=287 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 27.513947][ T24] audit: type=1400 audit(1786244541.220:67): avc: denied { mounton } for pid=293 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 27.517408][ T293] cgroup: Unknown subsys name 'net' [ 27.536727][ T24] audit: type=1400 audit(1786244541.220:68): avc: denied { mount } for pid=293 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 27.563919][ T24] audit: type=1400 audit(1786244541.240:69): avc: denied { unmount } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 27.564369][ T293] cgroup: Unknown subsys name 'devices' [ 27.645056][ T293] cgroup: Unknown subsys name 'hugetlb' [ 27.650675][ T293] cgroup: Unknown subsys name 'rlimit' [ 27.839436][ T24] audit: type=1400 audit(1786244541.540:70): avc: denied { setattr } for pid=293 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 27.862649][ T24] audit: type=1400 audit(1786244541.540:71): avc: denied { create } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 27.883248][ T24] audit: type=1400 audit(1786244541.540:72): avc: denied { write } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.896565][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 27.903724][ T24] audit: type=1400 audit(1786244541.540:73): avc: denied { read } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.932451][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 28.391882][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 28.402894][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 28.495886][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.503029][ T304] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.510647][ T304] device bridge_slave_0 entered promiscuous mode [ 28.517599][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.524840][ T304] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.532375][ T304] device bridge_slave_1 entered promiscuous mode [ 28.571990][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.579052][ T304] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.586376][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.593444][ T304] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.612336][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.619577][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.626988][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 28.635649][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.645537][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.653826][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.661110][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.669755][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.677983][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.685045][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.697747][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.707068][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.721199][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.732461][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.740771][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.748779][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.756934][ T304] device veth0_vlan entered promiscuous mode [ 28.767904][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.777075][ T304] device veth1_macvtap entered promiscuous mode [ 28.787322][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.797536][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 29.344815][ T48] device bridge_slave_1 left promiscuous mode [ 29.351006][ T48] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.358958][ T48] device bridge_slave_0 left promiscuous mode [ 29.365339][ T48] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.383364][ T48] device veth1_macvtap left promiscuous mode [ 29.389461][ T48] device veth0_vlan left promiscuous mode 2026/08/09 03:02:23 executed programs: 0 [ 29.550430][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.557735][ T363] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.565653][ T363] device bridge_slave_0 entered promiscuous mode [ 29.572455][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.579790][ T363] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.587218][ T363] device bridge_slave_1 entered promiscuous mode [ 29.630993][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.638113][ T363] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.645510][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.652665][ T363] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.672653][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.680542][ T305] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.688580][ T305] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.704695][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 29.713110][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.720163][ T305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.727580][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 29.735863][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.742968][ T305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.750354][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 29.760438][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 29.773975][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 29.785616][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 29.794030][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 29.801420][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 29.810124][ T363] device veth0_vlan entered promiscuous mode [ 29.820829][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 29.830182][ T363] device veth1_macvtap entered promiscuous mode [ 29.839534][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 29.849467][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 29.882248][ T305] blk_update_request: I/O error, dev sda, sector 606518 op 0x1:(WRITE) flags 0x4000 phys_seg 32 prio class 0 [ 29.894103][ T305] blk_update_request: I/O error, dev sda, sector 607024 op 0x1:(WRITE) flags 0x4000 phys_seg 28 prio class 0 [ 29.905936][ T305] blk_update_request: I/O error, dev sda, sector 607536 op 0x1:(WRITE) flags 0x4000 phys_seg 17 prio class 0 [ 29.917883][ T305] blk_update_request: I/O error, dev sda, sector 608048 op 0x1:(WRITE) flags 0x4000 phys_seg 16 prio class 0 [ 29.930076][ T305] blk_update_request: I/O error, dev sda, sector 608560 op 0x1:(WRITE) flags 0x4000 phys_seg 14 prio class 0 [ 29.942114][ T305] blk_update_request: I/O error, dev sda, sector 609072 op 0x1:(WRITE) flags 0x4000 phys_seg 16 prio class 0 [ 29.954147][ T305] blk_update_request: I/O error, dev sda, sector 609584 op 0x1:(WRITE) flags 0x4000 phys_seg 17 prio class 0 [ 29.965846][ T305] blk_update_request: I/O error, dev sda, sector 610096 op 0x1:(WRITE) flags 0x4000 phys_seg 15 prio class 0 [ 29.977610][ T305] blk_update_request: I/O error, dev sda, sector 610608 op 0x1:(WRITE) flags 0x4000 phys_seg 11 prio class 0 [ 29.989338][ T305] blk_update_request: I/O error, dev sda, sector 611120 op 0x1:(WRITE) flags 0x4000 phys_seg 26 prio class 0 [ 30.002844][ T305] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 76613) [ 30.017800][ T305] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 77063) [ 30.036235][ T305] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 77862) [ 30.047859][ T9] Buffer I/O error on device sda1, logical block 77025 [ 30.055053][ T9] Buffer I/O error on device sda1, logical block 77026 [ 30.058425][ T305] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 79208) [ 30.061937][ T9] Buffer I/O error on device sda1, logical block 77027 [ 30.080854][ T9] Buffer I/O error on device sda1, logical block 77028 [ 30.087871][ T9] Buffer I/O error on device sda1, logical block 77029 [ 30.094941][ T9] Buffer I/O error on device sda1, logical block 77030 [ 30.101816][ T9] Buffer I/O error on device sda1, logical block 77031 [ 30.106737][ T305] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 79910) [ 30.109810][ T9] Buffer I/O error on device sda1, logical block 77032 [ 30.127454][ T9] Buffer I/O error on device sda1, logical block 77033 [ 30.134631][ T9] Buffer I/O error on device sda1, logical block 77034 [ 30.146407][ T305] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 81958) [ 30.169462][ T305] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 84006) [ 30.191700][ T305] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 86054) [ 30.210780][ T305] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 88102) [ 30.222385][ T305] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2021 starting block 74469) [ 30.238602][ T372] Buffer I/O error on dev sda1, logical block 135, lost async page write [ 30.240608][ T58] Buffer I/O error on dev sda1, logical block 131171, lost sync page write [ 30.247470][ T372] Buffer I/O error on dev sda1, logical block 138, lost async page write [ 30.256701][ T58] Aborting journal on device sda1-8. [ 30.264448][ T372] Buffer I/O error on dev sda1, logical block 145, lost async page write [ 30.269893][ T37] Buffer I/O error on dev sda1, logical block 131072, lost sync page write [ 30.278320][ T372] Buffer I/O error on dev sda1, logical block 150, lost async page write [ 30.288680][ T58] JBD2: Error -5 detected when updating journal superblock for sda1-8. [ 30.296304][ T372] Buffer I/O error on dev sda1, logical block 157, lost async page write [ 30.312582][ T372] Buffer I/O error on dev sda1, logical block 158, lost async page write [ 30.321168][ T372] Buffer I/O error on dev sda1, logical block 159, lost async page write [ 30.329840][ T372] Buffer I/O error on dev sda1, logical block 226, lost async page write [ 30.348860][ T372] JBD2: Error while async write back metadata bh 135. [ 30.348899][ T372] JBD2: Error while async write back metadata bh 138. [ 30.356004][ T372] JBD2: Error while async write back metadata bh 145. [ 30.362851][ T372] JBD2: Error while async write back metadata bh 150. [ 30.371255][ T372] JBD2: Error while async write back metadata bh 157. [ 30.378148][ T372] JBD2: Error while async write back metadata bh 158. [ 30.385034][ T372] JBD2: Error while async write back metadata bh 159. [ 30.392689][ T372] JBD2: Error while async write back metadata bh 226. [ 30.399900][ T372] JBD2: Error while async write back metadata bh 243. [ 30.407507][ T372] JBD2: Error while async write back metadata bh 261. [ 30.414539][ T372] JBD2: Error while async write back metadata bh 270. [ 30.421602][ T372] JBD2: Error while async write back metadata bh 657. [ 30.428483][ T372] JBD2: Error while async write back metadata bh 4241. [ 30.435552][ T372] JBD2: Error while async write back metadata bh 5747. [ 30.442465][ T372] JBD2: Error while async write back metadata bh 5748. [ 30.449536][ T372] JBD2: Error while async write back metadata bh 5749. [ 30.457112][ T372] JBD2: Error while async write back metadata bh 5750. [ 30.464119][ T372] JBD2: Error while async write back metadata bh 5751. [ 30.472498][ T372] JBD2: Error while async write back metadata bh 33717. [ 30.486477][ T372] sd 0:0:1:0: [sda] Synchronizing SCSI cache [ 30.492334][ T1] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #2: comm init: reading directory lblock 0 [ 30.511865][ T1] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #2: comm init: reading directory lblock 0 [ 30.523859][ T1] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #2: comm init: reading directory lblock 0 [ 30.535975][ T1] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #2: comm init: reading directory lblock 0 [ 30.547534][ T1] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #2: comm init: reading directory lblock 0 [ 30.567594][ T1] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #2: comm init: reading directory lblock 0 [ 30.627679][ T372] EXT4-fs error (device sda1): ext4_journal_check_start:83: Detected aborted journal [ 30.638460][ T372] EXT4-fs (sda1): Remounting filesystem read-only [ 30.645281][ T372] ------------[ cut here ]------------ [ 30.650754][ T372] bdi-(unknown) not registered [ 30.655696][ T372] WARNING: CPU: 0 PID: 372 at fs/fs-writeback.c:2321 __mark_inode_dirty+0x650/0x960 [ 30.665084][ T372] Modules linked in: [ 30.669000][ T372] CPU: 0 PID: 372 Comm: syz.2.17 Not tainted syzkaller #0 [ 30.676159][ T372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 30.686319][ T372] RIP: 0010:__mark_inode_dirty+0x650/0x960 [ 30.692156][ T372] Code: fc ff df 41 80 7c 05 00 00 74 08 4c 89 ff e8 a7 f4 ec ff 49 8b 3f e8 0f af de ff 48 c7 c7 60 64 29 85 48 89 c6 e8 10 c5 c6 02 <0f> 0b e9 2f fe ff ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 8e fc ff [ 30.711955][ T372] RSP: 0018:ffffc90000d877a0 EFLAGS: 00010246 [ 30.718111][ T372] RAX: 3c49567f5f785500 RBX: 1ffff1102358f33a RCX: ffff888110db62c0 [ 30.726145][ T372] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 30.734166][ T372] RBP: ffffc90000d877e8 R08: ffffc90000d87127 R09: fffff520001b0e58 [ 30.742143][ T372] R10: dffffc0000000000 R11: fffff520001b0e25 R12: ffff88810aac5068 [ 30.750279][ T372] R13: 1ffff11021558a0c R14: 0000000000000000 R15: ffff88810aac5060 [ 30.758316][ T372] FS: 000055556e3d3500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 30.767381][ T372] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.774010][ T372] CR2: 000055e79491e8f8 CR3: 0000000110e9d000 CR4: 00000000003506b0 [ 30.781996][ T372] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.790037][ T372] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.798142][ T372] Call Trace: [ 30.801463][ T372] generic_update_time+0x20f/0x230 [ 30.806624][ T372] file_update_time+0x3c0/0x440 [ 30.811502][ T372] ? file_remove_privs+0x590/0x590 [ 30.816789][ T372] ext4_page_mkwrite+0x254/0x12f0 [ 30.821820][ T372] ? ____kasan_slab_free+0x125/0x160 [ 30.827243][ T372] ? kernfs_fop_write_iter+0x3ab/0x400 [ 30.832805][ T372] ? __x64_sys_write+0x7b/0x90 [ 30.837659][ T372] ? do_syscall_64+0x31/0x40 [ 30.842277][ T372] ? ext4_change_inode_journal_flag+0x5e0/0x5e0 [ 30.848688][ T372] wp_page_shared+0x45f/0x740 [ 30.853532][ T372] do_wp_page+0xb68/0xd00 [ 30.857869][ T372] handle_pte_fault+0xbc3/0x3910 [ 30.862805][ T372] handle_mm_fault+0xf86/0x1720 [ 30.867736][ T372] ? fsnotify_set_children_dentry_flags+0x210/0x210 [ 30.874400][ T372] ? can_reuse_spf_vma+0xe0/0xe0 [ 30.879363][ T372] ? vfs_write+0xae4/0xd70 [ 30.883841][ T372] ? __kasan_check_write+0x14/0x20 [ 30.888977][ T372] ? down_read_trylock+0x106/0x160 [ 30.894144][ T372] ? __init_rwsem+0x1c0/0x1c0 [ 30.898969][ T372] ? find_vma+0x30/0x150 [ 30.903340][ T372] do_user_addr_fault+0x576/0xe20 [ 30.908383][ T372] ? do_kern_addr_fault+0x80/0x80 [ 30.913457][ T372] ? debug_smp_processor_id+0x17/0x20 [ 30.918853][ T372] ? fpregs_assert_state_consistent+0xb1/0xe0 [ 30.924989][ T372] exc_page_fault+0x5a/0xc0 [ 30.929506][ T372] ? asm_exc_page_fault+0x8/0x30 [ 30.934511][ T372] asm_exc_page_fault+0x1e/0x30 [ 30.939377][ T372] RIP: 0033:0x7f6d0a0a37f1 [ 30.943888][ T372] Code: 00 48 89 ef e8 40 52 ff ff 48 8b 05 89 ef ee 00 83 05 72 ef ee 00 01 be 08 00 00 00 48 89 ef 48 8d 50 ff 48 89 15 6f ef ee 00 <44> 88 78 ff 44 8b 3d 54 ef ee 00 e8 0f 52 ff ff 48 8b 05 60 ef ee [ 30.963537][ T372] RSP: 002b:00007ffd4db40420 EFLAGS: 00010206 [ 30.969608][ T372] RAX: 0000001b33663fe0 RBX: 0000000000000000 RCX: 0000000000000000 [ 30.977663][ T372] RDX: 0000001b33663fdf RSI: 0000000000000008 RDI: 00007f6d0af92720 [ 30.985679][ T372] RBP: 00007f6d0af92720 R08: 0000000000000000 R09: 00007f6d0a463038 [ 30.993696][ T372] R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 [ 31.001689][ T372] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 [ 31.010639][ T372] ---[ end trace 474ab7ae773ee984 ]--- [ 31.017602][ T293] ------------[ cut here ]------------ [ 31.023097][ T293] bdi-(unknown) not registered [ 31.028432][ T293] WARNING: CPU: 0 PID: 293 at fs/fs-writeback.c:2321 __mark_inode_dirty+0x650/0x960 [ 31.037942][ T293] Modules linked in: [ 31.041892][ T293] CPU: 0 PID: 293 Comm: syz-executor Tainted: G W syzkaller #0 [ 31.050926][ T293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 31.061146][ T293] RIP: 0010:__mark_inode_dirty+0x650/0x960 [ 31.067359][ T293] Code: fc ff df 41 80 7c 05 00 00 74 08 4c 89 ff e8 a7 f4 ec ff 49 8b 3f e8 0f af de ff 48 c7 c7 60 64 29 85 48 89 c6 e8 10 c5 c6 02 <0f> 0b e9 2f fe ff ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 8e fc ff [ 31.087411][ T293] RSP: 0000:ffffc90000bb77d8 EFLAGS: 00010246 [ 31.093576][ T293] RAX: d9f01ba06cc8b300 RBX: 1ffff1102358fa9c RCX: ffff88810aaf93c0 [ 31.101703][ T293] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 31.109764][ T293] RBP: ffffc90000bb7820 R08: ffffc90000bb7167 R09: fffff52000176e60 [ 31.117975][ T293] R10: dffffc0000000000 R11: fffff52000176e2d R12: ffff88810aac5068 [ 31.126020][ T293] R13: 1ffff11021558a0c R14: 0000000000000000 R15: ffff88810aac5060 [ 31.134206][ T293] FS: 000055558dd70500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 31.143424][ T293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.150036][ T293] CR2: 00007f259561d000 CR3: 000000012142a000 CR4: 00000000003506b0 [ 31.158083][ T293] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.166119][ T293] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.174162][ T293] Call Trace: [ 31.177479][ T293] mark_buffer_dirty+0x21b/0x330 [ 31.182414][ T293] __block_commit_write+0x1ab/0x240 [ 31.187841][ T293] block_page_mkwrite+0x239/0x270 [ 31.192959][ T293] ? ext4_da_release_space+0x420/0x420 [ 31.198520][ T293] ext4_page_mkwrite+0xb02/0x12f0 [ 31.203616][ T293] ? ext4_change_inode_journal_flag+0x5e0/0x5e0 [ 31.209869][ T293] wp_page_shared+0x45f/0x740 [ 31.214623][ T293] do_wp_page+0xb68/0xd00 [ 31.218995][ T293] handle_pte_fault+0xbc3/0x3910 [ 31.224214][ T293] handle_mm_fault+0xf86/0x1720 [ 31.229372][ T293] ? fsnotify_clear_child_dentry_flag+0xe0/0xe0 [ 31.235671][ T293] ? can_reuse_spf_vma+0xe0/0xe0 [ 31.240633][ T293] ? vfs_write+0xaeb/0xd70 [ 31.245108][ T293] ? __kasan_check_write+0x14/0x20 [ 31.250236][ T293] ? down_read_trylock+0x106/0x160 [ 31.255403][ T293] ? __init_rwsem+0x1c0/0x1c0 [ 31.260102][ T293] ? vmacache_update+0xb7/0x120 [ 31.265044][ T293] ? find_vma+0x13b/0x150 [ 31.269419][ T293] do_user_addr_fault+0x576/0xe20 [ 31.274692][ T293] ? do_kern_addr_fault+0x80/0x80 [ 31.279740][ T293] ? debug_smp_processor_id+0x17/0x20 [ 31.285165][ T293] ? fpregs_assert_state_consistent+0xb1/0xe0 [ 31.291290][ T293] exc_page_fault+0x5a/0xc0 [ 31.295852][ T293] ? asm_exc_page_fault+0x8/0x30 [ 31.300816][ T293] asm_exc_page_fault+0x1e/0x30 [ 31.305854][ T293] RIP: 0033:0x7f2595b8a016 [ 31.310370][ T293] Code: 81 fa 80 00 00 00 76 ad c5 fe 6f 56 40 c5 fe 6f 5e 60 c5 fe 6f 64 16 e0 c5 fe 6f 6c 16 c0 c5 fe 6f 74 16 a0 c5 fe 6f 7c 16 80 fe 7f 07 c5 fe 7f 4f 20 c5 fe 7f 57 40 c5 fe 7f 5f 60 c5 fe 7f [ 31.330135][ T293] RSP: 002b:00007ffc90a13bd8 EFLAGS: 00010206 [ 31.336302][ T293] RAX: 00007f259561d000 RBX: 000055558dd85110 RCX: fffffffffffffbf0 [ 31.344331][ T293] RDX: 00000000000000da RSI: 000055558dd88160 RDI: 00007f259561d000 [ 31.352331][ T293] RBP: 00007ffc90a13bf0 R08: 00007f2595e0fe20 R09: 0000000000000000 [ 31.360395][ T293] R10: 0000000000000000 R11: 0000000000000202 R12: 000055558dd87e50 [ 31.368449][ T293] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 31.376477][ T293] ---[ end trace 474ab7ae773ee985 ]--- [ 31.439162][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 31.451290][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 31.462903][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 31.474472][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 2026/08/09 03:02:28 executed programs: 190 [ 37.498249][ T95] EXT4-fs error: 8 callbacks suppressed [ 37.498265][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 37.515664][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 37.527151][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 37.538704][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 37.550218][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1642: comm udevd: reading directory lblock 0 [ 37.561770][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1480: comm udevd: reading directory lblock 0 2026/08/09 03:02:33 executed programs: 490 [ 40.607740][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 40.619742][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 40.631382][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 40.643115][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 SYZFAIL: posix_spawnp failed (errno 5: Input/output error) connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF [ 41.984088][ T9] device bridge_slave_1 left promiscuous mode [ 41.990244][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.998605][ T9] device bridge_slave_0 left promiscuous mode [ 42.004871][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.012788][ T9] device veth1_macvtap left promiscuous mode [ 42.018939][ T9] device veth0_vlan left promiscuous mode [ 44.373415][ T95] EXT4-fs error: 15 callbacks suppressed [ 44.373436][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 44.390972][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 44.402498][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 44.414021][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 44.425466][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1642: comm udevd: reading directory lblock 0 [ 44.437095][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1480: comm udevd: reading directory lblock 0