syzkaller syzkaller login: [ 11.658883][ T24] kauditd_printk_skb: 48 callbacks suppressed [ 11.658893][ T24] audit: type=1400 audit(1785374768.640:59): 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 [ 11.666363][ T24] audit: type=1400 audit(1785374768.640:60): 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 [ 11.671548][ T24] audit: type=1400 audit(1785374768.640:61): avc: denied { write } for pid=217 comm="sh" path="pipe:[1469]" dev="pipefs" ino=1469 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 11.677280][ T24] audit: type=1400 audit(1785374768.640:62): 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 [ 11.681422][ T24] audit: type=1400 audit(1785374768.640:63): 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 '10.128.0.143' (ED25519) to the list of known hosts. 2026/07/30 01:26:18 parsed 1 programs 2026/07/30 01:26:18 serving rpc on tcp://45819 [ 21.854477][ T24] audit: type=1400 audit(1785374778.830:64): 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 [ 21.859847][ T24] audit: type=1400 audit(1785374778.830:65): 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 [ 21.865634][ T24] audit: type=1400 audit(1785374778.830:66): 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 [ 22.438611][ T24] audit: type=1400 audit(1785374779.420:67): 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 [ 22.439630][ T293] cgroup: Unknown subsys name 'net' [ 22.461269][ T24] audit: type=1400 audit(1785374779.420:68): 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 [ 22.488540][ T24] audit: type=1400 audit(1785374779.450:69): 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 [ 22.488766][ T293] cgroup: Unknown subsys name 'devices' [ 22.597966][ T293] cgroup: Unknown subsys name 'hugetlb' [ 22.603557][ T293] cgroup: Unknown subsys name 'rlimit' [ 22.716563][ T24] audit: type=1400 audit(1785374779.700:70): 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 [ 22.739771][ T24] audit: type=1400 audit(1785374779.700:71): 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 [ 22.745058][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 22.760281][ T24] audit: type=1400 audit(1785374779.700:72): 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 [ 22.788925][ T24] audit: type=1400 audit(1785374779.700:73): 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 Setting up swapspace version 1, size = 127995904 bytes [ 22.852756][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 23.286696][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 23.297177][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 23.558859][ T329] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.565899][ T329] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.573410][ T329] device bridge_slave_0 entered promiscuous mode [ 23.580208][ T329] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.587242][ T329] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.594506][ T329] device bridge_slave_1 entered promiscuous mode [ 23.625729][ T329] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.632796][ T329] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.640093][ T329] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.647130][ T329] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.664528][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 23.672235][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.679822][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.688471][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 23.696703][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.703752][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.712805][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 23.721083][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.728122][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.739171][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 23.749094][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 23.761758][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 23.772647][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 23.780935][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 23.788695][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 23.796953][ T329] device veth0_vlan entered promiscuous mode [ 23.805992][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 23.815843][ T329] device veth1_macvtap entered promiscuous mode [ 23.824958][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 23.834562][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/30 01:26:21 executed programs: 0 [ 24.326801][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.333850][ T365] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.341521][ T365] device bridge_slave_0 entered promiscuous mode [ 24.348351][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.355371][ T365] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.362960][ T365] device bridge_slave_1 entered promiscuous mode [ 24.402087][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.409242][ T365] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.416509][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.423546][ T365] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.443455][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.451083][ T333] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.458562][ T333] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.468355][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.476666][ T333] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.483672][ T333] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.495432][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.503575][ T333] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.510644][ T333] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.521169][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 24.529317][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.541451][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 24.549698][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.562320][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 24.571002][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.581023][ T49] device bridge_slave_1 left promiscuous mode [ 24.587165][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.594512][ T49] device bridge_slave_0 left promiscuous mode [ 24.600903][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.608804][ T49] device veth1_macvtap left promiscuous mode [ 24.614789][ T49] device veth0_vlan left promiscuous mode [ 24.673081][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 24.680958][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.689805][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.697574][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.705432][ T365] device veth0_vlan entered promiscuous mode [ 24.714960][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 24.723232][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.732256][ T365] device veth1_macvtap entered promiscuous mode [ 24.741230][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 24.748904][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 24.757301][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 24.766014][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 24.774320][ T333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 24.803641][ T7] blk_update_request: I/O error, dev sda, sector 376774 op 0x1:(WRITE) flags 0x4000 phys_seg 48 prio class 0 [ 24.815641][ T7] blk_update_request: I/O error, dev sda, sector 377280 op 0x1:(WRITE) flags 0x4000 phys_seg 34 prio class 0 [ 24.827550][ T48] blk_update_request: I/O error, dev sda, sector 377792 op 0x1:(WRITE) flags 0x4000 phys_seg 18 prio class 0 [ 24.827560][ T7] blk_update_request: I/O error, dev sda, sector 378304 op 0x1:(WRITE) flags 0x4000 phys_seg 6 prio class 0 [ 24.827593][ T7] blk_update_request: I/O error, dev sda, sector 378816 op 0x1:(WRITE) flags 0x4000 phys_seg 5 prio class 0 [ 24.862535][ T7] blk_update_request: I/O error, dev sda, sector 379328 op 0x1:(WRITE) flags 0x4000 phys_seg 5 prio class 0 [ 24.874250][ T7] blk_update_request: I/O error, dev sda, sector 379840 op 0x1:(WRITE) flags 0x4000 phys_seg 5 prio class 0 [ 24.886140][ T7] blk_update_request: I/O error, dev sda, sector 380352 op 0x1:(WRITE) flags 0x4000 phys_seg 5 prio class 0 [ 24.897718][ T7] blk_update_request: I/O error, dev sda, sector 380864 op 0x1:(WRITE) flags 0x4000 phys_seg 5 prio class 0 [ 24.909382][ T7] blk_update_request: I/O error, dev sda, sector 381376 op 0x1:(WRITE) flags 0x4000 phys_seg 5 prio class 0 [ 24.921486][ T7] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2022 starting block 48240) [ 24.933023][ T7] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2023 starting block 48241) [ 24.933268][ T333] Buffer I/O error on device sda1, logical block 47058 [ 24.946214][ T7] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2028 starting block 130087) [ 24.952799][ T333] Buffer I/O error on device sda1, logical block 47059 [ 24.963756][ T7] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2029 starting block 139303) [ 24.982250][ T7] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2029 starting block 139366) [ 24.983114][ T333] Buffer I/O error on device sda1, logical block 47060 [ 24.993823][ T7] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2029 starting block 140838) [ 25.001716][ T333] Buffer I/O error on device sda1, logical block 47061 [ 25.012216][ T7] EXT4-fs warning (device sda1): ext4_end_bio:351: I/O error 10 writing to inode 2029 starting block 142886) [ 25.019289][ T333] Buffer I/O error on device sda1, logical block 47062 [ 25.037455][ T333] Buffer I/O error on device sda1, logical block 47063 [ 25.044396][ T333] Buffer I/O error on device sda1, logical block 47064 [ 25.051347][ T333] Buffer I/O error on device sda1, logical block 47065 [ 25.058253][ T333] Buffer I/O error on device sda1, logical block 47066 [ 25.065134][ T333] Buffer I/O error on device sda1, logical block 47067 [ 25.075736][ T370] Buffer I/O error on dev sda1, logical block 138, lost async page write [ 25.084376][ T370] Buffer I/O error on dev sda1, logical block 145, lost async page write [ 25.086854][ T58] Aborting journal on device sda1-8. [ 25.093073][ T370] Buffer I/O error on dev sda1, logical block 150, lost async page write [ 25.098400][ T48] Buffer I/O error on dev sda1, logical block 131072, lost sync page write [ 25.106680][ T370] Buffer I/O error on dev sda1, logical block 157, lost async page write [ 25.115333][ T58] JBD2: Error -5 detected when updating journal superblock for sda1-8. [ 25.123612][ T370] Buffer I/O error on dev sda1, logical block 158, lost async page write [ 25.140225][ T370] Buffer I/O error on dev sda1, logical block 159, lost async page write [ 25.148680][ T370] Buffer I/O error on dev sda1, logical block 226, lost async page write [ 25.157126][ T370] Buffer I/O error on dev sda1, logical block 243, lost async page write [ 25.165542][ T370] Buffer I/O error on dev sda1, logical block 261, lost async page write [ 25.181425][ T370] JBD2: Error while async write back metadata bh 138. [ 25.181439][ T370] JBD2: Error while async write back metadata bh 145. [ 25.188429][ T370] JBD2: Error while async write back metadata bh 150. [ 25.195350][ T370] JBD2: Error while async write back metadata bh 157. [ 25.202316][ T370] JBD2: Error while async write back metadata bh 158. [ 25.209943][ T370] JBD2: Error while async write back metadata bh 159. [ 25.217553][ T370] JBD2: Error while async write back metadata bh 226. [ 25.224627][ T370] JBD2: Error while async write back metadata bh 243. [ 25.231732][ T370] JBD2: Error while async write back metadata bh 261. [ 25.238668][ T370] JBD2: Error while async write back metadata bh 270. [ 25.245577][ T370] JBD2: Error while async write back metadata bh 657. [ 25.252581][ T370] JBD2: Error while async write back metadata bh 4241. [ 25.259461][ T370] JBD2: Error while async write back metadata bh 5747. [ 25.266309][ T370] JBD2: Error while async write back metadata bh 5748. [ 25.273380][ T370] JBD2: Error while async write back metadata bh 5749. [ 25.280390][ T370] JBD2: Error while async write back metadata bh 5750. [ 25.287415][ T370] JBD2: Error while async write back metadata bh 5751. [ 25.294951][ T370] JBD2: Error while async write back metadata bh 33717. [ 25.306256][ T370] sd 0:0:1:0: [sda] Synchronizing SCSI cache [ 25.390535][ T370] EXT4-fs error (device sda1): ext4_journal_check_start:83: Detected aborted journal [ 25.400240][ T370] EXT4-fs (sda1): Remounting filesystem read-only [ 25.406927][ T370] ------------[ cut here ]------------ [ 25.412400][ T370] bdi-(unknown) not registered [ 25.417276][ T370] WARNING: CPU: 0 PID: 370 at fs/fs-writeback.c:2321 __mark_inode_dirty+0x650/0x960 [ 25.426974][ T370] Modules linked in: [ 25.430858][ T370] CPU: 0 PID: 370 Comm: syz.2.17 Not tainted syzkaller #0 [ 25.437971][ T370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 25.448047][ T370] RIP: 0010:__mark_inode_dirty+0x650/0x960 [ 25.453826][ T370] 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 e0 61 29 85 48 89 c6 e8 70 c0 c6 02 <0f> 0b e9 2f fe ff ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 8e fc ff [ 25.473469][ T370] RSP: 0018:ffffc90000cb77a0 EFLAGS: 00010246 [ 25.479658][ T370] RAX: 87ef2ec90b5b9c00 RBX: 1ffff11024186922 RCX: ffff88811041bb40 [ 25.487690][ T370] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 [ 25.495660][ T370] RBP: ffffc90000cb77e8 R08: ffffc90000cb7127 R09: fffff52000196e58 [ 25.503659][ T370] R10: dffffc0000000000 R11: fffff52000196e25 R12: ffff88810aa81068 [ 25.511680][ T370] R13: 1ffff1102155020c R14: 0000000000000000 R15: ffff88810aa81060 [ 25.519697][ T370] FS: 0000555577442500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 25.528648][ T370] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.535227][ T370] CR2: 00007fffd0680b68 CR3: 0000000111750000 CR4: 00000000003506b0 [ 25.543232][ T370] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.551305][ T370] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.559335][ T370] Call Trace: [ 25.562625][ T370] generic_update_time+0x20f/0x230 [ 25.567762][ T370] file_update_time+0x3c0/0x440 [ 25.572628][ T370] ? file_remove_privs+0x590/0x590 [ 25.577792][ T370] ext4_page_mkwrite+0x254/0x12f0 [ 25.582915][ T370] ? ____kasan_slab_free+0x125/0x160 [ 25.588227][ T370] ? kernfs_fop_write_iter+0x3ab/0x400 [ 25.593683][ T370] ? __x64_sys_write+0x7b/0x90 [ 25.598475][ T370] ? do_syscall_64+0x31/0x40 [ 25.603058][ T370] ? ext4_change_inode_journal_flag+0x5e0/0x5e0 [ 25.609317][ T370] wp_page_shared+0x45f/0x740 [ 25.614002][ T370] do_wp_page+0xb68/0xd00 [ 25.618413][ T370] handle_pte_fault+0xbc3/0x3910 [ 25.623365][ T370] handle_mm_fault+0xf86/0x1720 [ 25.628240][ T370] ? fsnotify_set_children_dentry_flags+0x210/0x210 [ 25.634828][ T370] ? can_reuse_spf_vma+0xe0/0xe0 [ 25.639883][ T370] ? vfs_write+0xae4/0xd70 [ 25.644283][ T370] ? __kasan_check_write+0x14/0x20 [ 25.649474][ T370] ? down_read_trylock+0x106/0x160 [ 25.654582][ T370] ? __init_rwsem+0x1c0/0x1c0 [ 25.659285][ T370] ? find_vma+0x30/0x150 [ 25.663525][ T370] do_user_addr_fault+0x576/0xe20 [ 25.668669][ T370] ? do_kern_addr_fault+0x80/0x80 [ 25.673706][ T370] ? debug_smp_processor_id+0x17/0x20 [ 25.679118][ T370] ? fpregs_assert_state_consistent+0xb1/0xe0 [ 25.685176][ T370] exc_page_fault+0x5a/0xc0 [ 25.689768][ T370] ? asm_exc_page_fault+0x8/0x30 [ 25.694864][ T370] asm_exc_page_fault+0x1e/0x30 [ 25.699765][ T370] RIP: 0033:0x7fcab48ab751 [ 25.704186][ T370] Code: 00 48 89 ef e8 60 52 ff ff 48 8b 05 29 f0 ee 00 83 05 12 f0 ee 00 01 be 08 00 00 00 48 89 ef 48 8d 50 ff 48 89 15 0f f0 ee 00 <44> 88 78 ff 44 8b 3d f4 ef ee 00 e8 2f 52 ff ff 48 8b 05 00 f0 ee [ 25.723930][ T370] RSP: 002b:00007ffc322c1b20 EFLAGS: 00010206 [ 25.730014][ T370] RAX: 0000001b33863fe0 RBX: 0000000000000000 RCX: 0000000000000000 [ 25.738010][ T370] RDX: 0000001b33863fdf RSI: 0000000000000008 RDI: 00007fcab579a720 [ 25.745999][ T370] RBP: 00007fcab579a720 R08: 0000000000000000 R09: 00007fcab4c6b038 [ 25.753986][ T370] R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 [ 25.761979][ T370] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 [ 25.769983][ T370] ---[ end trace 742ca318f79ab681 ]--- [ 25.777040][ T293] ------------[ cut here ]------------ [ 25.782519][ T293] bdi-(unknown) not registered [ 25.787390][ T293] WARNING: CPU: 1 PID: 293 at fs/fs-writeback.c:2321 __mark_inode_dirty+0x650/0x960 [ 25.796838][ T293] Modules linked in: [ 25.800728][ T293] CPU: 1 PID: 293 Comm: syz-executor Tainted: G W syzkaller #0 [ 25.809656][ T293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 25.819747][ T293] RIP: 0010:__mark_inode_dirty+0x650/0x960 [ 25.825526][ 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 e0 61 29 85 48 89 c6 e8 70 c0 c6 02 <0f> 0b e9 2f fe ff ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 8e fc ff [ 25.845194][ T293] RSP: 0000:ffffc90000ba77d8 EFLAGS: 00010246 [ 25.851431][ T293] RAX: cc3d5cf90ea3f000 RBX: 1ffff110241861c0 RCX: ffff88810af34f00 [ 25.859436][ T293] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 25.867431][ T293] RBP: ffffc90000ba7820 R08: ffffc90000ba7167 R09: fffff52000174e60 [ 25.875394][ T293] R10: dffffc0000000000 R11: fffff52000174e2d R12: ffff88810aa81068 [ 25.883557][ T293] R13: 1ffff1102155020c R14: 0000000000000000 R15: ffff88810aa81060 [ 25.891550][ T293] FS: 0000555568d49500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.900484][ T293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.907091][ T293] CR2: 00007f8bf2f82000 CR3: 000000010af9c000 CR4: 00000000003506a0 [ 25.915054][ T293] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.923038][ T293] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.931032][ T293] Call Trace: [ 25.934318][ T293] mark_buffer_dirty+0x21b/0x330 [ 25.939260][ T293] __block_commit_write+0x1ab/0x240 [ 25.944445][ T293] block_page_mkwrite+0x239/0x270 [ 25.949475][ T293] ? ext4_da_release_space+0x420/0x420 [ 25.954922][ T293] ext4_page_mkwrite+0xb02/0x12f0 [ 25.959978][ T293] ? ext4_change_inode_journal_flag+0x5e0/0x5e0 [ 25.966208][ T293] wp_page_shared+0x45f/0x740 [ 25.970927][ T293] do_wp_page+0xb68/0xd00 [ 25.975268][ T293] handle_pte_fault+0xbc3/0x3910 [ 25.980220][ T293] handle_mm_fault+0xf86/0x1720 [ 25.985059][ T293] ? fsnotify_clear_child_dentry_flag+0xe0/0xe0 [ 25.991307][ T293] ? can_reuse_spf_vma+0xe0/0xe0 [ 25.996236][ T293] ? vfs_write+0xaeb/0xd70 [ 26.000661][ T293] ? __kasan_check_write+0x14/0x20 [ 26.006491][ T293] ? down_read_trylock+0x106/0x160 [ 26.011589][ T293] ? __init_rwsem+0x1c0/0x1c0 [ 26.016241][ T293] ? vmacache_update+0xb7/0x120 [ 26.021649][ T293] ? find_vma+0x13b/0x150 [ 26.025975][ T293] do_user_addr_fault+0x576/0xe20 [ 26.031027][ T293] ? do_kern_addr_fault+0x80/0x80 [ 26.036057][ T293] ? debug_smp_processor_id+0x17/0x20 [ 26.041497][ T293] ? fpregs_assert_state_consistent+0xb1/0xe0 [ 26.047579][ T293] exc_page_fault+0x5a/0xc0 [ 26.052079][ T293] ? asm_exc_page_fault+0x8/0x30 [ 26.057023][ T293] asm_exc_page_fault+0x1e/0x30 [ 26.062004][ T293] RIP: 0033:0x7f8bf34eeed6 [ 26.066535][ 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 [ 26.086177][ T293] RSP: 002b:00007ffed787c3b8 EFLAGS: 00010202 [ 26.092302][ T293] RAX: 00007f8bf2f82000 RBX: 0000555568d5d2b0 RCX: fffffffffffffbf0 [ 26.100302][ T293] RDX: 00000000000000d8 RSI: 0000555568d5d9c0 RDI: 00007f8bf2f82000 [ 26.108282][ T293] RBP: 00007ffed787c3d0 R08: 00007f8bf3773e20 R09: 0000000000000000 [ 26.116244][ T293] R10: 0000000000000000 R11: 0000000000000202 R12: 0000555568d60e50 [ 26.124253][ T293] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 26.132289][ T293] ---[ end trace 742ca318f79ab682 ]--- [ 26.341091][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 26.352738][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 26.364214][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 26.375627][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 26.387403][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1642: comm udevd: reading directory lblock 0 [ 26.399336][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1480: comm udevd: reading directory lblock 0 2026/07/30 01:26:26 executed programs: 193 [ 29.440430][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 29.451867][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 29.463391][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 29.474769][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 32.490392][ T95] EXT4-fs error: 2 callbacks suppressed [ 32.490407][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 32.507360][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 32.518796][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 32.530231][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 32.541837][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1642: comm udevd: reading directory lblock 0 [ 32.553369][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1480: comm udevd: reading directory lblock 0 2026/07/30 01:26:31 executed programs: 494 [ 35.590297][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 35.601828][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 35.613268][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 35.624648][ 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 [ 36.796951][ T369] device bridge_slave_1 left promiscuous mode [ 36.803207][ T369] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.810690][ T369] device bridge_slave_0 left promiscuous mode [ 36.816901][ T369] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.824645][ T369] device veth1_macvtap left promiscuous mode [ 36.830742][ T369] device veth0_vlan left promiscuous mode [ 39.097955][ T95] EXT4-fs error: 15 callbacks suppressed [ 39.097969][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #259: comm udevd: reading directory lblock 0 [ 39.117224][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 39.128655][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 39.140065][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #264: comm udevd: reading directory lblock 0 [ 39.151444][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1642: comm udevd: reading directory lblock 0 [ 39.162991][ T95] EXT4-fs error (device sda1): __ext4_find_entry:1657: inode #1480: comm udevd: reading directory lblock 0