syzkaller login: [ 81.592667][ T993] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.132' (ED25519) to the list of known hosts.
2025/11/05 12:18:54 parsed 1 programs
[ 88.002325][ T5812] cgroup: Unknown subsys name 'net'
[ 88.303490][ T5812] cgroup: Unknown subsys name 'cpuset'
[ 88.358460][ T5812] cgroup: Unknown subsys name 'rlimit'
Setting up swapspace version 1, size = 127995904 bytes
[ 90.072310][ T5812] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 94.042097][ T1496] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 94.042122][ T1496] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 94.172862][ T1216] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 94.172882][ T1216] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 98.286443][ T5872] chnl_net:caif_netlink_parms(): no params data found
[ 98.698583][ T5872] bridge0: port 1(bridge_slave_0) entered blocking state
[ 98.699981][ T5872] bridge0: port 1(bridge_slave_0) entered disabled state
[ 98.700136][ T5872] bridge_slave_0: entered allmulticast mode
[ 98.701813][ T5872] bridge_slave_0: entered promiscuous mode
[ 98.706860][ T5872] bridge0: port 2(bridge_slave_1) entered blocking state
[ 98.706949][ T5872] bridge0: port 2(bridge_slave_1) entered disabled state
[ 98.707048][ T5872] bridge_slave_1: entered allmulticast mode
[ 98.724927][ T5872] bridge_slave_1: entered promiscuous mode
[ 98.971357][ T5872] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 98.974067][ T5872] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 99.290335][ T5872] team0: Port device team_slave_0 added
[ 99.293947][ T5872] team0: Port device team_slave_1 added
[ 99.444597][ T5872] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 99.444612][ T5872] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 99.444636][ T5872] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 99.449682][ T5872] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 99.449702][ T5872] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 99.449726][ T5872] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 99.634949][ T5872] hsr_slave_0: entered promiscuous mode
[ 99.635909][ T5872] hsr_slave_1: entered promiscuous mode
[ 100.031084][ T5872] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 100.054721][ T5872] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 100.092605][ T5872] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 100.132616][ T5872] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 100.364049][ T5872] 8021q: adding VLAN 0 to HW filter on device bond0
[ 100.383914][ T5872] 8021q: adding VLAN 0 to HW filter on device team0
[ 100.394817][ T1496] bridge0: port 1(bridge_slave_0) entered blocking state
[ 100.395491][ T1496] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 100.410255][ T58] bridge0: port 2(bridge_slave_1) entered blocking state
[ 100.410437][ T58] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 100.626598][ T5872] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 100.672113][ T5872] veth0_vlan: entered promiscuous mode
[ 100.681071][ T5872] veth1_vlan: entered promiscuous mode
[ 100.711859][ T5872] veth0_macvtap: entered promiscuous mode
[ 100.715460][ T5872] veth1_macvtap: entered promiscuous mode
[ 100.733843][ T5872] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 100.751753][ T5872] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 100.770753][ T1496] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 100.772193][ T1496] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 100.772436][ T1496] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 100.772474][ T1496] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 101.562428][ T1216] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 101.819969][ T1216] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 102.142145][ T5905] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 102.144622][ T5905] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 102.155877][ T5905] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 102.157230][ T5905] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 102.159202][ T5905] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 102.632845][ T1216] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
2025/11/05 12:19:11 executed programs: 0
[ 102.928839][ T5905] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 102.933476][ T5905] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 102.934689][ T5905] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 102.936081][ T5905] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 102.936823][ T5905] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 103.149025][ T5914] chnl_net:caif_netlink_parms(): no params data found
[ 103.394404][ T1216] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 103.661370][ T5914] bridge0: port 1(bridge_slave_0) entered blocking state
[ 103.661496][ T5914] bridge0: port 1(bridge_slave_0) entered disabled state
[ 103.661610][ T5914] bridge_slave_0: entered allmulticast mode
[ 103.663782][ T5914] bridge_slave_0: entered promiscuous mode
[ 103.666289][ T5914] bridge0: port 2(bridge_slave_1) entered blocking state
[ 103.666412][ T5914] bridge0: port 2(bridge_slave_1) entered disabled state
[ 103.666518][ T5914] bridge_slave_1: entered allmulticast mode
[ 103.679452][ T5914] bridge_slave_1: entered promiscuous mode
[ 103.882012][ T5914] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 103.884614][ T5914] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 104.011679][ T5914] team0: Port device team_slave_0 added
[ 104.014239][ T5914] team0: Port device team_slave_1 added
[ 104.140424][ T5914] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 104.140439][ T5914] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 104.140458][ T5914] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 104.142673][ T5914] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 104.142684][ T5914] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 104.142702][ T5914] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 104.403352][ T5914] hsr_slave_0: entered promiscuous mode
[ 104.405455][ T5914] hsr_slave_1: entered promiscuous mode
[ 104.406276][ T5914] debugfs: 'hsr0' already exists in 'hsr'
[ 104.406350][ T5914] Cannot create hsr debugfs directory
[ 104.609216][ T1216] bridge_slave_1: left allmulticast mode
[ 104.609416][ T1216] bridge_slave_1: left promiscuous mode
[ 104.610842][ T1216] bridge0: port 2(bridge_slave_1) entered disabled state
[ 104.699056][ T1216] bridge_slave_0: left allmulticast mode
[ 104.699075][ T1216] bridge_slave_0: left promiscuous mode
[ 104.699234][ T1216] bridge0: port 1(bridge_slave_0) entered disabled state
[ 104.949412][ T5905] Bluetooth: hci0: command tx timeout
[ 106.298565][ T1216] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 106.358500][ T1216] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 106.391520][ T1216] bond0 (unregistering): Released all slaves
[ 106.798125][ T1216] hsr_slave_0: left promiscuous mode
[ 106.848068][ T1216] hsr_slave_1: left promiscuous mode
[ 106.849091][ T1216] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 106.849155][ T1216] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 106.879781][ T1216] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 106.879807][ T1216] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 106.944035][ T1216] veth1_macvtap: left promiscuous mode
[ 106.944182][ T1216] veth0_macvtap: left promiscuous mode
[ 106.944346][ T1216] veth1_vlan: left promiscuous mode
[ 106.944512][ T1216] veth0_vlan: left promiscuous mode
[ 107.027964][ T5905] Bluetooth: hci0: command tx timeout
[ 108.778436][ T1216] team0 (unregistering): Port device team_slave_1 removed
[ 108.998506][ T1216] team0 (unregistering): Port device team_slave_0 removed
[ 109.108073][ T5905] Bluetooth: hci0: command tx timeout
[ 111.188261][ T5905] Bluetooth: hci0: command tx timeout
[ 111.868618][ T5914] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 111.903923][ T5914] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 111.952195][ T5914] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 111.982836][ T5914] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 112.355055][ T5914] 8021q: adding VLAN 0 to HW filter on device bond0
[ 112.385176][ T5914] 8021q: adding VLAN 0 to HW filter on device team0
[ 112.394368][ T1007] bridge0: port 1(bridge_slave_0) entered blocking state
[ 112.394623][ T1007] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 112.414894][ T1007] bridge0: port 2(bridge_slave_1) entered blocking state
[ 112.415018][ T1007] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 112.626118][ T5914] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 112.676412][ T5914] veth0_vlan: entered promiscuous mode
[ 112.689495][ T5914] veth1_vlan: entered promiscuous mode
[ 112.732408][ T5914] veth0_macvtap: entered promiscuous mode
[ 112.735720][ T5914] veth1_macvtap: entered promiscuous mode
[ 112.752199][ T5914] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 112.762147][ T5914] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 112.787390][ T1007] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 112.790234][ T1007] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 112.798933][ T1007] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 112.800147][ T1007] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 113.158181][ T1562] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 113.158202][ T1562] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 113.219365][ T1562] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 113.219385][ T1562] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
2025/11/05 12:19:22 executed programs: 2
[ 113.360928][ T5962] loop0: detected capacity change from 0 to 512
[ 113.411969][ T5962]
[ 113.411981][ T5962] ======================================================
[ 113.411988][ T5962] WARNING: possible circular locking dependency detected
[ 113.412008][ T5962] syzkaller #0 Not tainted
[ 113.412017][ T5962] ------------------------------------------------------
[ 113.412025][ T5962] syz.0.17/5962 is trying to acquire lock:
[ 113.412042][ T5962] ffff888036ac2c58 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x1cc/0x350
[ 113.412094][ T5962]
[ 113.412094][ T5962] but task is already holding lock:
[ 113.412100][ T5962] ffff888041b7bbf0 (&ei->xattr_sem){++++}-{4:4}, at: __ext4_mark_inode_dirty+0x3eb/0x700
[ 113.412142][ T5962]
[ 113.412142][ T5962] which lock already depends on the new lock.
[ 113.412142][ T5962]
[ 113.412149][ T5962]
[ 113.412149][ T5962] the existing dependency chain (in reverse order) is:
[ 113.412156][ T5962]
[ 113.412156][ T5962] -> #2 (&ei->xattr_sem){++++}-{4:4}:
[ 113.412180][ T5962] lock_acquire+0x120/0x360
[ 113.412201][ T5962] down_write+0x3a/0x50
[ 113.412223][ T5962] ext4_xattr_set_handle+0x165/0x1590
[ 113.412244][ T5962] ext4_initxattrs+0x9f/0x110
[ 113.412262][ T5962] security_inode_init_security+0x2a0/0x3f0
[ 113.412283][ T5962] __ext4_new_inode+0x3314/0x3cb0
[ 113.412306][ T5962] ext4_create+0x22d/0x460
[ 113.412324][ T5962] path_openat+0x1500/0x3840
[ 113.412341][ T5962] do_filp_open+0x1fa/0x410
[ 113.412357][ T5962] do_sys_openat2+0x121/0x1c0
[ 113.412372][ T5962] __x64_sys_openat+0x138/0x170
[ 113.412387][ T5962] do_syscall_64+0xfa/0xfa0
[ 113.412407][ T5962] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 113.412424][ T5962]
[ 113.412424][ T5962] -> #1 (jbd2_handle){++++}-{0:0}:
[ 113.412448][ T5962] lock_acquire+0x120/0x360
[ 113.412468][ T5962] start_this_handle+0x1fa7/0x21c0
[ 113.412487][ T5962] jbd2__journal_start+0x2c1/0x5b0
[ 113.412507][ T5962] __ext4_journal_start_sb+0x227/0x5c0
[ 113.412529][ T5962] ext4_do_writepages+0xf6f/0x4600
[ 113.412549][ T5962] ext4_writepages+0x205/0x350
[ 113.412564][ T5962] do_writepages+0x32e/0x550
[ 113.412581][ T5962] __writeback_single_inode+0x145/0x1000
[ 113.412601][ T5962] writeback_sb_inodes+0x6b7/0xf60
[ 113.412619][ T5962] __writeback_inodes_wb+0x111/0x240
[ 113.412637][ T5962] wb_writeback+0x44f/0xaf0
[ 113.412654][ T5962] wb_workfn+0xaf4/0xf00
[ 113.412668][ T5962] process_scheduled_works+0xae1/0x17b0
[ 113.412687][ T5962] worker_thread+0x8a0/0xda0
[ 113.412705][ T5962] kthread+0x711/0x8a0
[ 113.412726][ T5962] ret_from_fork+0x4bc/0x870
[ 113.412744][ T5962] ret_from_fork_asm+0x1a/0x30
[ 113.412760][ T5962]
[ 113.412760][ T5962] -> #0 (&sbi->s_writepages_rwsem){++++}-{0:0}:
[ 113.412784][ T5962] validate_chain+0xb9b/0x2140
[ 113.412797][ T5962] __lock_acquire+0xab9/0xd20
[ 113.412817][ T5962] lock_acquire+0x120/0x360
[ 113.412836][ T5962] percpu_down_read_internal+0x48/0x1d0
[ 113.412852][ T5962] ext4_writepages+0x1cc/0x350
[ 113.412867][ T5962] do_writepages+0x32e/0x550
[ 113.412883][ T5962] __writeback_single_inode+0x145/0x1000
[ 113.412901][ T5962] writeback_single_inode+0x1db/0x640
[ 113.412918][ T5962] write_inode_now+0x160/0x1d0
[ 113.412933][ T5962] iput+0x830/0xc50
[ 113.412954][ T5962] ext4_xattr_block_set+0x1fce/0x2ac0
[ 113.412976][ T5962] ext4_expand_extra_isize_ea+0x12da/0x1ea0
[ 113.413017][ T5962] __ext4_expand_extra_isize+0x30d/0x400
[ 113.413046][ T5962] __ext4_mark_inode_dirty+0x46c/0x700
[ 113.413064][ T5962] ext4_evict_inode+0x80d/0xee0
[ 113.413081][ T5962] evict+0x504/0x9c0
[ 113.413097][ T5962] ext4_orphan_cleanup+0xc20/0x1460
[ 113.413115][ T5962] ext4_fill_super+0x593b/0x61f0
[ 113.413131][ T5962] get_tree_bdev_flags+0x40e/0x4d0
[ 113.413149][ T5962] vfs_get_tree+0x92/0x2b0
[ 113.413168][ T5962] do_new_mount+0x302/0xa10
[ 113.413187][ T5962] __se_sys_mount+0x313/0x410
[ 113.413207][ T5962] do_syscall_64+0xfa/0xfa0
[ 113.413227][ T5962] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 113.413243][ T5962]
[ 113.413243][ T5962] other info that might help us debug this:
[ 113.413243][ T5962]
[ 113.413249][ T5962] Chain exists of:
[ 113.413249][ T5962] &sbi->s_writepages_rwsem --> jbd2_handle --> &ei->xattr_sem
[ 113.413249][ T5962]
[ 113.413280][ T5962] Possible unsafe locking scenario:
[ 113.413280][ T5962]
[ 113.413285][ T5962] CPU0 CPU1
[ 113.413290][ T5962] ---- ----
[ 113.413296][ T5962] lock(&ei->xattr_sem);
[ 113.413308][ T5962] lock(jbd2_handle);
[ 113.413320][ T5962] lock(&ei->xattr_sem);
[ 113.413333][ T5962] rlock(&sbi->s_writepages_rwsem);
[ 113.413345][ T5962]
[ 113.413345][ T5962] *** DEADLOCK ***
[ 113.413345][ T5962]
[ 113.413350][ T5962] 3 locks held by syz.0.17/5962:
[ 113.413361][ T5962] #0: ffff888036ac00d0 (&type->s_umount_key#26/1){+.+.}-{4:4}, at: alloc_super+0x1ba/0x9a0
[ 113.413414][ T5962] #1: ffff888036ac0770 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x2d6/0xee0
[ 113.413456][ T5962] #2: ffff888041b7bbf0 (&ei->xattr_sem){++++}-{4:4}, at: __ext4_mark_inode_dirty+0x3eb/0x700
[ 113.413501][ T5962]
[ 113.413501][ T5962] stack backtrace:
[ 113.413523][ T5962] CPU: 0 UID: 0 PID: 5962 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 113.413544][ T5962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 113.413561][ T5962] Call Trace:
[ 113.413571][ T5962]
[ 113.413578][ T5962] dump_stack_lvl+0x189/0x250
[ 113.413604][ T5962] ? __pfx_dump_stack_lvl+0x10/0x10
[ 113.413629][ T5962] ? __pfx__printk+0x10/0x10
[ 113.413650][ T5962] ? print_lock_name+0xde/0x100
[ 113.413671][ T5962] print_circular_bug+0x2ee/0x310
[ 113.413690][ T5962] check_noncircular+0x134/0x160
[ 113.413710][ T5962] validate_chain+0xb9b/0x2140
[ 113.413729][ T5962] ? look_up_lock_class+0x74/0x170
[ 113.413752][ T5962] ? register_lock_class+0x51/0x320
[ 113.413776][ T5962] __lock_acquire+0xab9/0xd20
[ 113.413800][ T5962] ? ext4_writepages+0x1cc/0x350
[ 113.413817][ T5962] lock_acquire+0x120/0x360
[ 113.413837][ T5962] ? ext4_writepages+0x1cc/0x350
[ 113.413855][ T5962] ? _raw_spin_unlock_irqrestore+0x85/0x110
[ 113.413878][ T5962] ? lockdep_hardirqs_on+0x9c/0x150
[ 113.413901][ T5962] percpu_down_read_internal+0x48/0x1d0
[ 113.413918][ T5962] ? ext4_writepages+0x1cc/0x350
[ 113.413936][ T5962] ext4_writepages+0x1cc/0x350
[ 113.413954][ T5962] ? __pfx_ext4_writepages+0x10/0x10
[ 113.413971][ T5962] ? rt_mutex_slowunlock+0x493/0x8a0
[ 113.413992][ T5962] ? rt_spin_unlock+0x150/0x200
[ 113.414008][ T5962] ? rt_spin_unlock+0x161/0x200
[ 113.414025][ T5962] ? __pfx_ext4_writepages+0x10/0x10
[ 113.414047][ T5962] do_writepages+0x32e/0x550
[ 113.414067][ T5962] ? reacquire_held_locks+0x127/0x1d0
[ 113.414088][ T5962] ? rt_spin_lock+0x1c1/0x3e0
[ 113.414106][ T5962] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 113.414125][ T5962] __writeback_single_inode+0x145/0x1000
[ 113.414148][ T5962] writeback_single_inode+0x1db/0x640
[ 113.414168][ T5962] write_inode_now+0x160/0x1d0
[ 113.414185][ T5962] ? __pfx_write_inode_now+0x10/0x10
[ 113.414214][ T5962] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 113.414233][ T5962] ? rt_spin_unlock+0x150/0x200
[ 113.414251][ T5962] ? rt_spin_unlock+0x161/0x200
[ 113.414269][ T5962] iput+0x830/0xc50
[ 113.414293][ T5962] ext4_xattr_block_set+0x1fce/0x2ac0
[ 113.414328][ T5962] ? __pfx_ext4_xattr_block_set+0x10/0x10
[ 113.414353][ T5962] ? ext4_xattr_block_find+0x2d4/0x350
[ 113.414377][ T5962] ext4_expand_extra_isize_ea+0x12da/0x1ea0
[ 113.414416][ T5962] __ext4_expand_extra_isize+0x30d/0x400
[ 113.414444][ T5962] __ext4_mark_inode_dirty+0x46c/0x700
[ 113.414469][ T5962] ext4_evict_inode+0x80d/0xee0
[ 113.414493][ T5962] ? __pfx_ext4_evict_inode+0x10/0x10
[ 113.414510][ T5962] ? rt_spin_unlock+0x150/0x200
[ 113.414529][ T5962] ? rt_spin_unlock+0x161/0x200
[ 113.414547][ T5962] ? __pfx_ext4_evict_inode+0x10/0x10
[ 113.414565][ T5962] evict+0x504/0x9c0
[ 113.414585][ T5962] ? __pfx_evict+0x10/0x10
[ 113.414602][ T5962] ? rt_spin_unlock+0x161/0x200
[ 113.414621][ T5962] ? iput+0x946/0xc50
[ 113.414645][ T5962] ext4_orphan_cleanup+0xc20/0x1460
[ 113.414668][ T5962] ? __pfx_ext4_orphan_cleanup+0x10/0x10
[ 113.414689][ T5962] ? ext4_register_li_request+0x640/0x720
[ 113.414708][ T5962] ? errseq_check_and_advance+0x66/0x120
[ 113.414730][ T5962] ext4_fill_super+0x593b/0x61f0
[ 113.414755][ T5962] ? __pfx_ext4_fill_super+0x10/0x10
[ 113.414771][ T5962] ? snprintf+0xda/0x120
[ 113.414785][ T5962] ? rt_spin_lock+0x1c1/0x3e0
[ 113.414803][ T5962] ? __pfx_snprintf+0x10/0x10
[ 113.414820][ T5962] ? set_blocksize+0x219/0x450
[ 113.414842][ T5962] ? rt_spin_unlock+0x150/0x200
[ 113.414862][ T5962] ? sb_set_blocksize+0x104/0x180
[ 113.414885][ T5962] ? setup_bdev_super+0x4c1/0x5b0
[ 113.414908][ T5962] get_tree_bdev_flags+0x40e/0x4d0
[ 113.414929][ T5962] ? __pfx_ext4_fill_super+0x10/0x10
[ 113.414945][ T5962] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 113.414965][ T5962] ? cap_capable+0x11f/0x460
[ 113.414982][ T5962] ? safesetid_security_capable+0xa9/0x1a0
[ 113.415001][ T5962] vfs_get_tree+0x92/0x2b0
[ 113.415022][ T5962] do_new_mount+0x302/0xa10
[ 113.415049][ T5962] ? safesetid_security_capable+0xa9/0x1a0
[ 113.415068][ T5962] ? __pfx_do_new_mount+0x10/0x10
[ 113.415089][ T5962] ? ns_capable+0x8a/0xf0
[ 113.415115][ T5962] __se_sys_mount+0x313/0x410
[ 113.415140][ T5962] ? __pfx___se_sys_mount+0x10/0x10
[ 113.415164][ T5962] ? do_syscall_64+0xbe/0xfa0
[ 113.415184][ T5962] ? __x64_sys_mount+0x20/0xc0
[ 113.415207][ T5962] do_syscall_64+0xfa/0xfa0
[ 113.415227][ T5962] ? lockdep_hardirqs_on+0x9c/0x150
[ 113.415248][ T5962] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 113.415266][ T5962] ? clear_bhb_loop+0x60/0xb0
[ 113.415284][ T5962] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 113.415302][ T5962] RIP: 0033:0x7f93984d0e6a
[ 113.415323][ T5962] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 113.415338][ T5962] RSP: 002b:00007ffc3540d958 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 113.415356][ T5962] RAX: ffffffffffffffda RBX: 00007ffc3540d9e0 RCX: 00007f93984d0e6a
[ 113.415369][ T5962] RDX: 0000200000000180 RSI: 00002000000001c0 RDI: 00007ffc3540d9a0
[ 113.415382][ T5962] RBP: 0000200000000180 R08: 00007ffc3540d9e0 R09: 0000000000800700
[ 113.415394][ T5962] R10: 0000000000800700 R11: 0000000000000246 R12: 00002000000001c0
[ 113.415406][ T5962] R13: 00007ffc3540d9a0 R14: 000000000000046f R15: 000000000000002c
[ 113.415425][ T5962]
[ 113.415796][ T5962] ------------[ cut here ]------------
[ 113.415804][ T5962] EA inode 11 i_nlink=2
[ 113.416026][ T5962] WARNING: CPU: 0 PID: 5962 at fs/ext4/xattr.c:1058 ext4_xattr_inode_update_ref+0x51a/0x5b0
[ 113.416071][ T5962] Modules linked in:
[ 113.416085][ T5962] CPU: 0 UID: 0 PID: 5962 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 113.416105][ T5962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 113.416115][ T5962] RIP: 0010:ext4_xattr_inode_update_ref+0x51a/0x5b0
[ 113.416142][ T5962] Code: 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 06 84 c0 0f 85 80 00 00 00 41 8b 17 48 c7 c7 00 9b ff 8a 4c 89 e6 e8 97 9a 03 ff 90 <0f> 0b 90 90 4c 8b 6c 24 28 e9 59 fe ff ff e8 33 f6 40 08 44 89 f9
[ 113.416157][ T5962] RSP: 0018:ffffc900044ef100 EFLAGS: 00010246
[ 113.416172][ T5962] RAX: c3aed5dbf5e9f100 RBX: 0000000000000001 RCX: ffff88802f0eda00
[ 113.416185][ T5962] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 113.416196][ T5962] RBP: ffffc900044ef1f8 R08: 0000000000000000 R09: 0000000000000000
[ 113.416208][ T5962] R10: dffffc0000000000 R11: ffffed101710487b R12: 000000000000000b
[ 113.416220][ T5962] R13: ffff888041b7e310 R14: 1ffff1100836fc48 R15: ffff888041b7e240
[ 113.416234][ T5962] FS: 0000555589f0c500(0000) GS:ffff888126df9000(0000) knlGS:0000000000000000
[ 113.416250][ T5962] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 113.416262][ T5962] CR2: 00005645aed4b8e0 CR3: 00000000232be000 CR4: 00000000003526f0
[ 113.416278][ T5962] Call Trace:
[ 113.416284][ T5962]
[ 113.416291][ T5962] ? __pfx_inode_set_ctime_to_ts+0x10/0x10
[ 113.416312][ T5962] ? __pfx_ext4_xattr_inode_update_ref+0x10/0x10
[ 113.416339][ T5962] ? ext4_xattr_inode_iget+0x3d2/0x5f0
[ 113.416366][ T5962] ext4_xattr_set_entry+0xabb/0x1e20
[ 113.416397][ T5962] ext4_xattr_ibody_set+0x254/0x6a0
[ 113.416423][ T5962] ext4_expand_extra_isize_ea+0x13ad/0x1ea0
[ 113.416460][ T5962] __ext4_expand_extra_isize+0x30d/0x400
[ 113.416490][ T5962] __ext4_mark_inode_dirty+0x46c/0x700
[ 113.416515][ T5962] ext4_evict_inode+0x80d/0xee0
[ 113.416539][ T5962] ? __pfx_ext4_evict_inode+0x10/0x10
[ 113.416559][ T5962] ? rt_spin_unlock+0x150/0x200
[ 113.416580][ T5962] ? rt_spin_unlock+0x161/0x200
[ 113.416598][ T5962] ? __pfx_ext4_evict_inode+0x10/0x10
[ 113.416617][ T5962] evict+0x504/0x9c0
[ 113.416637][ T5962] ? __pfx_evict+0x10/0x10
[ 113.416654][ T5962] ? rt_spin_unlock+0x161/0x200
[ 113.416674][ T5962] ? iput+0x946/0xc50
[ 113.416697][ T5962] ext4_orphan_cleanup+0xc20/0x1460
[ 113.416722][ T5962] ? __pfx_ext4_orphan_cleanup+0x10/0x10
[ 113.416741][ T5962] ? ext4_register_li_request+0x640/0x720
[ 113.416760][ T5962] ? errseq_check_and_advance+0x66/0x120
[ 113.416782][ T5962] ext4_fill_super+0x593b/0x61f0
[ 113.416807][ T5962] ? __pfx_ext4_fill_super+0x10/0x10
[ 113.416823][ T5962] ? snprintf+0xda/0x120
[ 113.416839][ T5962] ? rt_spin_lock+0x1c1/0x3e0
[ 113.416858][ T5962] ? __pfx_snprintf+0x10/0x10
[ 113.416874][ T5962] ? set_blocksize+0x219/0x450
[ 113.416897][ T5962] ? rt_spin_unlock+0x150/0x200
[ 113.416917][ T5962] ? sb_set_blocksize+0x104/0x180
[ 113.416941][ T5962] ? setup_bdev_super+0x4c1/0x5b0
[ 113.416963][ T5962] get_tree_bdev_flags+0x40e/0x4d0
[ 113.416984][ T5962] ? __pfx_ext4_fill_super+0x10/0x10
[ 113.417001][ T5962] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 113.417022][ T5962] ? cap_capable+0x11f/0x460
[ 113.417045][ T5962] ? safesetid_security_capable+0xa9/0x1a0
[ 113.417066][ T5962] vfs_get_tree+0x92/0x2b0
[ 113.417087][ T5962] do_new_mount+0x302/0xa10
[ 113.417108][ T5962] ? safesetid_security_capable+0xa9/0x1a0
[ 113.417127][ T5962] ? __pfx_do_new_mount+0x10/0x10
[ 113.417148][ T5962] ? ns_capable+0x8a/0xf0
[ 113.417174][ T5962] __se_sys_mount+0x313/0x410
[ 113.417199][ T5962] ? __pfx___se_sys_mount+0x10/0x10
[ 113.417222][ T5962] ? do_syscall_64+0xbe/0xfa0
[ 113.417243][ T5962] ? __x64_sys_mount+0x20/0xc0
[ 113.417265][ T5962] do_syscall_64+0xfa/0xfa0
[ 113.417285][ T5962] ? lockdep_hardirqs_on+0x9c/0x150
[ 113.417306][ T5962] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 113.417324][ T5962] ? clear_bhb_loop+0x60/0xb0
[ 113.417343][ T5962] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 113.417359][ T5962] RIP: 0033:0x7f93984d0e6a
[ 113.417374][ T5962] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 113.417389][ T5962] RSP: 002b:00007ffc3540d958 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 113.417407][ T5962] RAX: ffffffffffffffda RBX: 00007ffc3540d9e0 RCX: 00007f93984d0e6a
[ 113.417420][ T5962] RDX: 0000200000000180 RSI: 00002000000001c0 RDI: 00007ffc3540d9a0
[ 113.417432][ T5962] RBP: 0000200000000180 R08: 00007ffc3540d9e0 R09: 0000000000800700
[ 113.417444][ T5962] R10: 0000000000800700 R11: 0000000000000246 R12: 00002000000001c0
[ 113.417456][ T5962] R13: 00007ffc3540d9a0 R14: 000000000000046f R15: 000000000000002c
[ 113.417475][ T5962]
[ 113.417484][ T5962] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 113.417497][ T5962] CPU: 0 UID: 0 PID: 5962 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 113.417518][ T5962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 113.417528][ T5962] Call Trace:
[ 113.417535][ T5962]
[ 113.417542][ T5962] dump_stack_lvl+0x99/0x250
[ 113.417567][ T5962] ? __asan_memcpy+0x40/0x70
[ 113.417587][ T5962] ? __pfx_dump_stack_lvl+0x10/0x10
[ 113.417610][ T5962] ? __pfx__printk+0x10/0x10
[ 113.417635][ T5962] vpanic+0x237/0x6d0
[ 113.417651][ T5962] ? __pfx_vpanic+0x10/0x10
[ 113.417672][ T5962] panic+0xb9/0xc0
[ 113.417687][ T5962] ? __pfx_panic+0x10/0x10
[ 113.417709][ T5962] __warn+0x31b/0x4b0
[ 113.417726][ T5962] ? ext4_xattr_inode_update_ref+0x51a/0x5b0
[ 113.417752][ T5962] ? ext4_xattr_inode_update_ref+0x51a/0x5b0
[ 113.417777][ T5962] report_bug+0x2be/0x4f0
[ 113.417798][ T5962] ? ext4_xattr_inode_update_ref+0x51a/0x5b0
[ 113.417828][ T5962] ? ext4_xattr_inode_update_ref+0x51a/0x5b0
[ 113.417850][ T5962] ? ext4_xattr_inode_update_ref+0x51c/0x5b0
[ 113.417873][ T5962] handle_bug+0x84/0x160
[ 113.417896][ T5962] exc_invalid_op+0x1a/0x50
[ 113.417920][ T5962] asm_exc_invalid_op+0x1a/0x20
[ 113.417936][ T5962] RIP: 0010:ext4_xattr_inode_update_ref+0x51a/0x5b0
[ 113.417963][ T5962] Code: 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 06 84 c0 0f 85 80 00 00 00 41 8b 17 48 c7 c7 00 9b ff 8a 4c 89 e6 e8 97 9a 03 ff 90 <0f> 0b 90 90 4c 8b 6c 24 28 e9 59 fe ff ff e8 33 f6 40 08 44 89 f9
[ 113.417978][ T5962] RSP: 0018:ffffc900044ef100 EFLAGS: 00010246
[ 113.417994][ T5962] RAX: c3aed5dbf5e9f100 RBX: 0000000000000001 RCX: ffff88802f0eda00
[ 113.418006][ T5962] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 113.418017][ T5962] RBP: ffffc900044ef1f8 R08: 0000000000000000 R09: 0000000000000000
[ 113.418029][ T5962] R10: dffffc0000000000 R11: ffffed101710487b R12: 000000000000000b
[ 113.418049][ T5962] R13: ffff888041b7e310 R14: 1ffff1100836fc48 R15: ffff888041b7e240
[ 113.418070][ T5962] ? __pfx_inode_set_ctime_to_ts+0x10/0x10
[ 113.418090][ T5962] ? __pfx_ext4_xattr_inode_update_ref+0x10/0x10
[ 113.418117][ T5962] ? ext4_xattr_inode_iget+0x3d2/0x5f0
[ 113.418144][ T5962] ext4_xattr_set_entry+0xabb/0x1e20
[ 113.418176][ T5962] ext4_xattr_ibody_set+0x254/0x6a0
[ 113.418203][ T5962] ext4_expand_extra_isize_ea+0x13ad/0x1ea0
[ 113.418241][ T5962] __ext4_expand_extra_isize+0x30d/0x400
[ 113.418271][ T5962] __ext4_mark_inode_dirty+0x46c/0x700
[ 113.418296][ T5962] ext4_evict_inode+0x80d/0xee0
[ 113.418321][ T5962] ? __pfx_ext4_evict_inode+0x10/0x10
[ 113.418340][ T5962] ? rt_spin_unlock+0x150/0x200
[ 113.418359][ T5962] ? rt_spin_unlock+0x161/0x200
[ 113.418378][ T5962] ? __pfx_ext4_evict_inode+0x10/0x10
[ 113.418397][ T5962] evict+0x504/0x9c0
[ 113.418419][ T5962] ? __pfx_evict+0x10/0x10
[ 113.418436][ T5962] ? rt_spin_unlock+0x161/0x200
[ 113.418455][ T5962] ? iput+0x946/0xc50
[ 113.418481][ T5962] ext4_orphan_cleanup+0xc20/0x1460
[ 113.418506][ T5962] ? __pfx_ext4_orphan_cleanup+0x10/0x10
[ 113.418527][ T5962] ? ext4_register_li_request+0x640/0x720
[ 113.418545][ T5962] ? errseq_check_and_advance+0x66/0x120
[ 113.418567][ T5962] ext4_fill_super+0x593b/0x61f0
[ 113.418591][ T5962] ? __pfx_ext4_fill_super+0x10/0x10
[ 113.418606][ T5962] ? snprintf+0xda/0x120
[ 113.418620][ T5962] ? rt_spin_lock+0x1c1/0x3e0
[ 113.418638][ T5962] ? __pfx_snprintf+0x10/0x10
[ 113.418653][ T5962] ? set_blocksize+0x219/0x450
[ 113.418676][ T5962] ? rt_spin_unlock+0x150/0x200
[ 113.418694][ T5962] ? sb_set_blocksize+0x104/0x180
[ 113.418718][ T5962] ? setup_bdev_super+0x4c1/0x5b0
[ 113.418741][ T5962] get_tree_bdev_flags+0x40e/0x4d0
[ 113.418761][ T5962] ? __pfx_ext4_fill_super+0x10/0x10
[ 113.418779][ T5962] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 113.418800][ T5962] ? cap_capable+0x11f/0x460
[ 113.418817][ T5962] ? safesetid_security_capable+0xa9/0x1a0
[ 113.418837][ T5962] vfs_get_tree+0x92/0x2b0
[ 113.418858][ T5962] do_new_mount+0x302/0xa10
[ 113.418879][ T5962] ? safesetid_security_capable+0xa9/0x1a0
[ 113.418897][ T5962] ? __pfx_do_new_mount+0x10/0x10
[ 113.418918][ T5962] ? ns_capable+0x8a/0xf0
[ 113.418945][ T5962] __se_sys_mount+0x313/0x410
[ 113.418969][ T5962] ? __pfx___se_sys_mount+0x10/0x10
[ 113.418993][ T5962] ? do_syscall_64+0xbe/0xfa0
[ 113.419014][ T5962] ? __x64_sys_mount+0x20/0xc0
[ 113.419045][ T5962] do_syscall_64+0xfa/0xfa0
[ 113.419065][ T5962] ? lockdep_hardirqs_on+0x9c/0x150
[ 113.419086][ T5962] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 113.419103][ T5962] ? clear_bhb_loop+0x60/0xb0
[ 113.419122][ T5962] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 113.419139][ T5962] RIP: 0033:0x7f93984d0e6a
[ 113.419154][ T5962] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 113.419167][ T5962] RSP: 002b:00007ffc3540d958 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 113.419185][ T5962] RAX: ffffffffffffffda RBX: 00007ffc3540d9e0 RCX: 00007f93984d0e6a
[ 113.419198][ T5962] RDX: 0000200000000180 RSI: 00002000000001c0 RDI: 00007ffc3540d9a0
[ 113.419210][ T5962] RBP: 0000200000000180 R08: 00007ffc3540d9e0 R09: 0000000000800700
[ 113.419222][ T5962] R10: 0000000000800700 R11: 0000000000000246 R12: 00002000000001c0
[ 113.419233][ T5962] R13: 00007ffc3540d9a0 R14: 000000000000046f R15: 000000000000002c
[ 113.419251][ T5962]
[ 113.419504][ T5962] Kernel Offset: disabled