syzkaller login: [ 92.030514][ T1007] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.246' (ED25519) to the list of known hosts. 2026/05/23 11:18:08 parsed 1 programs [ 102.956401][ T5618] cgroup: Unknown subsys name 'net' [ 103.219116][ T5618] cgroup: Unknown subsys name 'cpuset' [ 103.272474][ T5618] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 105.275716][ T5618] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 109.505997][ T1183] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 109.506025][ T1183] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 109.648878][ T1183] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 109.648903][ T1183] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 111.319498][ T5654] bridge0: port 1(bridge_slave_0) entered blocking state [ 111.320579][ T5654] bridge0: port 1(bridge_slave_0) entered disabled state [ 111.320711][ T5654] bridge_slave_0: entered allmulticast mode [ 111.326639][ T5654] bridge_slave_0: entered promiscuous mode [ 111.362596][ T5654] bridge0: port 2(bridge_slave_1) entered blocking state [ 111.362697][ T5654] bridge0: port 2(bridge_slave_1) entered disabled state [ 111.362859][ T5654] bridge_slave_1: entered allmulticast mode [ 111.365249][ T5654] bridge_slave_1: entered promiscuous mode [ 111.758382][ T5654] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 111.774112][ T5654] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 111.822247][ T5654] team0: Port device team_slave_0 added [ 111.826566][ T5654] team0: Port device team_slave_1 added [ 111.866094][ T5654] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 111.866112][ T5654] 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. [ 111.866141][ T5654] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 111.882698][ T5654] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 111.882742][ T5654] 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. [ 111.882817][ T5654] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 112.427797][ T5654] hsr_slave_0: entered promiscuous mode [ 112.428930][ T5654] hsr_slave_1: entered promiscuous mode [ 113.125267][ T5654] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 113.181218][ T5654] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 113.183684][ T5654] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 113.229154][ T5654] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 113.283847][ T5654] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 113.306438][ T5654] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 113.309212][ T5654] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 113.356115][ T5654] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 113.506534][ T5654] 8021q: adding VLAN 0 to HW filter on device bond0 [ 113.540491][ T5654] 8021q: adding VLAN 0 to HW filter on device team0 [ 113.566903][ T56] bridge0: port 1(bridge_slave_0) entered blocking state [ 113.567075][ T56] bridge0: port 1(bridge_slave_0) entered forwarding state [ 113.610871][ T1177] bridge0: port 2(bridge_slave_1) entered blocking state [ 113.610999][ T1177] bridge0: port 2(bridge_slave_1) entered forwarding state [ 114.131067][ T5654] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 114.203068][ T5654] veth0_vlan: entered promiscuous mode [ 114.224451][ T5654] veth1_vlan: entered promiscuous mode [ 114.297430][ T5654] veth0_macvtap: entered promiscuous mode [ 114.307151][ T5654] veth1_macvtap: entered promiscuous mode [ 114.343424][ T5654] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 114.369907][ T5654] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 114.401547][ T3088] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 114.446120][ T3088] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 114.467146][ T56] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 114.471032][ T56] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 115.237887][ T3088] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 115.959649][ T3088] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 116.595321][ T60] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 116.619505][ T60] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 116.621429][ T60] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 116.640338][ T60] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 116.642502][ T60] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 116.738134][ T3088] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 117.251131][ T3088] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 118.322151][ T3088] bridge_slave_1: left allmulticast mode [ 118.322372][ T3088] bridge_slave_1: left promiscuous mode [ 118.329903][ T3088] bridge0: port 2(bridge_slave_1) entered disabled state [ 118.523958][ T3088] bridge_slave_0: left allmulticast mode [ 118.523995][ T3088] bridge_slave_0: left promiscuous mode [ 118.524247][ T3088] bridge0: port 1(bridge_slave_0) entered disabled state [ 119.562649][ T3088] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 119.622645][ T3088] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 119.664132][ T3088] bond0 (unregistering): Released all slaves [ 119.717657][ T5264] 8021q: adding VLAN 0 to HW filter on device eth1 [ 120.141861][ T3088] hsr_slave_0: left promiscuous mode [ 120.187490][ T3088] hsr_slave_1: left promiscuous mode [ 120.188656][ T3088] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 120.188723][ T3088] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 120.243881][ T3088] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 120.243911][ T3088] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 120.338506][ T3088] veth1_macvtap: left promiscuous mode [ 120.339276][ T3088] veth0_macvtap: left promiscuous mode [ 120.339571][ T3088] veth1_vlan: left promiscuous mode [ 120.339888][ T3088] veth0_vlan: left promiscuous mode [ 121.172813][ T3088] team0 (unregistering): Port device team_slave_1 removed [ 121.232451][ T3088] team0 (unregistering): Port device team_slave_0 removed [ 121.454841][ T5264] 8021q: adding VLAN 0 to HW filter on device eth3 [ 122.401086][ T5264] 8021q: adding VLAN 0 to HW filter on device eth2 [ 123.398583][ T5264] 8021q: adding VLAN 0 to HW filter on device eth4 2026/05/23 11:18:33 executed programs: 0 [ 124.431602][ T60] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 124.452207][ T60] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 124.456047][ T60] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 124.457210][ T60] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 124.459717][ T60] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 125.512554][ T5804] bridge0: port 1(bridge_slave_0) entered blocking state [ 125.512704][ T5804] bridge0: port 1(bridge_slave_0) entered disabled state [ 125.513059][ T5804] bridge_slave_0: entered allmulticast mode [ 125.515052][ T5804] bridge_slave_0: entered promiscuous mode [ 125.519556][ T5804] bridge0: port 2(bridge_slave_1) entered blocking state [ 125.519701][ T5804] bridge0: port 2(bridge_slave_1) entered disabled state [ 125.519820][ T5804] bridge_slave_1: entered allmulticast mode [ 125.548198][ T5804] bridge_slave_1: entered promiscuous mode [ 125.631984][ T5804] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 125.636156][ T5804] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 125.695448][ T5804] team0: Port device team_slave_0 added [ 125.697962][ T5804] team0: Port device team_slave_1 added [ 125.744369][ T5804] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 125.744383][ T5804] 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. [ 125.744403][ T5804] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 125.746048][ T5804] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 125.746059][ T5804] 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. [ 125.746079][ T5804] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 125.886817][ T5804] hsr_slave_0: entered promiscuous mode [ 125.887870][ T5804] hsr_slave_1: entered promiscuous mode [ 126.574038][ T60] Bluetooth: hci0: command tx timeout [ 128.226276][ T5804] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 128.291316][ T5804] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 128.297023][ T5804] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 128.349789][ T5804] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 128.651824][ T60] Bluetooth: hci0: command tx timeout [ 128.742410][ T5804] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 128.791682][ T5804] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 128.795894][ T5804] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 128.861082][ T5804] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 129.029633][ T5804] 8021q: adding VLAN 0 to HW filter on device bond0 [ 129.097322][ T5804] 8021q: adding VLAN 0 to HW filter on device team0 [ 129.137261][ T3415] bridge0: port 1(bridge_slave_0) entered blocking state [ 129.137486][ T3415] bridge0: port 1(bridge_slave_0) entered forwarding state [ 129.175874][ T3415] bridge0: port 2(bridge_slave_1) entered blocking state [ 129.176014][ T3415] bridge0: port 2(bridge_slave_1) entered forwarding state [ 130.189308][ T5804] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 130.321506][ T5804] veth0_vlan: entered promiscuous mode [ 130.369008][ T5804] veth1_vlan: entered promiscuous mode [ 130.469813][ T5804] veth0_macvtap: entered promiscuous mode [ 130.483815][ T5804] veth1_macvtap: entered promiscuous mode [ 130.583100][ T5804] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 130.607385][ T5804] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 130.648557][ T3089] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 130.648657][ T3089] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 130.648698][ T3089] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 130.649547][ T3089] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 130.733298][ T60] Bluetooth: hci0: command tx timeout [ 131.303376][ T3088] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 131.303410][ T3088] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 131.402876][ T3415] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 131.402898][ T3415] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/05/23 11:18:40 executed programs: 2 [ 132.033351][ T5957] loop0: detected capacity change from 0 to 32768 [ 132.811773][ T60] Bluetooth: hci0: command tx timeout [ 132.879906][ T5967] loop0: detected capacity change from 0 to 32768 [ 132.980658][ T1333] ieee802154 phy0 wpan0: encryption failed: -22 [ 132.980753][ T1333] ieee802154 phy1 wpan1: encryption failed: -22 [ 133.515765][ T5968] loop0: detected capacity change from 0 to 32768 [ 134.215314][ T5971] loop0: detected capacity change from 0 to 32768 [ 134.819875][ T5973] loop0: detected capacity change from 0 to 32768 [ 135.455615][ T5974] loop0: detected capacity change from 0 to 32768 [ 136.121458][ T5975] loop0: detected capacity change from 0 to 32768 [ 136.731112][ T5976] loop0: detected capacity change from 0 to 32768 2026/05/23 11:18:45 executed programs: 10 [ 137.347997][ T5977] loop0: detected capacity change from 0 to 32768 [ 137.954002][ T5978] loop0: detected capacity change from 0 to 32768 [ 138.568356][ T5979] loop0: detected capacity change from 0 to 32768 [ 139.167814][ T5980] loop0: detected capacity change from 0 to 32768 [ 139.813018][ T5981] loop0: detected capacity change from 0 to 32768 [ 140.417160][ T5982] loop0: detected capacity change from 0 to 32768 [ 141.000899][ T5983] loop0: detected capacity change from 0 to 32768 [ 141.635085][ T5984] loop0: detected capacity change from 0 to 32768 [ 142.218828][ T5985] loop0: detected capacity change from 0 to 32768 2026/05/23 11:18:51 executed programs: 19 [ 142.840538][ T5986] loop0: detected capacity change from 0 to 32768 [ 143.413683][ T5987] loop0: detected capacity change from 0 to 32768 [ 144.000720][ T5988] loop0: detected capacity change from 0 to 32768 [ 144.610015][ T5989] loop0: detected capacity change from 0 to 32768 [ 145.195622][ T5990] loop0: detected capacity change from 0 to 32768 [ 145.825766][ T5991] loop0: detected capacity change from 0 to 32768 [ 146.385381][ T5992] loop0: detected capacity change from 0 to 32768 [ 146.985745][ T5993] loop0: detected capacity change from 0 to 32768 [ 147.607430][ T5994] loop0: detected capacity change from 0 to 32768 2026/05/23 11:18:56 executed programs: 28 [ 148.183966][ T5995] loop0: detected capacity change from 0 to 32768 [ 148.800740][ T5996] loop0: detected capacity change from 0 to 32768 [ 149.382812][ T5997] loop0: detected capacity change from 0 to 32768 [ 149.985203][ T5998] loop0: detected capacity change from 0 to 32768 [ 150.568776][ T5999] loop0: detected capacity change from 0 to 32768 [ 151.204483][ T6000] loop0: detected capacity change from 0 to 32768 [ 151.803826][ T6001] loop0: detected capacity change from 0 to 32768 [ 152.395465][ T6002] loop0: detected capacity change from 0 to 32768 [ 153.011444][ T6003] loop0: detected capacity change from 0 to 32768 2026/05/23 11:19:02 executed programs: 37 [ 153.685916][ T6004] loop0: detected capacity change from 0 to 32768 [ 154.322243][ T6005] loop0: detected capacity change from 0 to 32768 [ 154.934172][ T6006] loop0: detected capacity change from 0 to 32768 [ 155.543767][ T6007] loop0: detected capacity change from 0 to 32768 [ 156.142410][ T6008] loop0: detected capacity change from 0 to 32768 [ 156.733698][ T6009] loop0: detected capacity change from 0 to 32768 [ 157.353158][ T6010] loop0: detected capacity change from 0 to 32768 [ 157.945140][ T6011] loop0: detected capacity change from 0 to 32768 [ 158.565339][ T6012] loop0: detected capacity change from 0 to 32768 2026/05/23 11:19:07 executed programs: 46 [ 159.164471][ T6013] loop0: detected capacity change from 0 to 32768 [ 159.760103][ T6014] loop0: detected capacity change from 0 to 32768 [ 160.347801][ T6015] loop0: detected capacity change from 0 to 32768 [ 160.949199][ T6016] loop0: detected capacity change from 0 to 32768 [ 161.539271][ T6017] loop0: detected capacity change from 0 to 32768 [ 162.116584][ T6018] loop0: detected capacity change from 0 to 32768 [ 162.681299][ T6019] loop0: detected capacity change from 0 to 32768 [ 162.748836][ C1] =========================================================[ 162.748836][ C1] ================================================================== [ 162.748854][ C1] BUG: KASAN: slab-use-after-free in lbmIODone+0x1312/0x16c0 [ 162.748902][ C1] Read of size 4 at addr ffff88803d768808 by task ksoftirqd/1/30 [ 162.748922][ C1] [ 162.748951][ C1] CPU: 1 UID: 0 PID: 30 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 162.748977][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 162.748999][ C1] Call Trace: [ 162.749008][ C1] [ 162.749017][ C1] dump_stack_lvl+0xe8/0x150 [ 162.749046][ C1] print_address_description+0x55/0x1e0 [ 162.749074][ C1] ? lbmIODone+0x1312/0x16c0 [ 162.749103][ C1] print_report+0x58/0x70 [ 162.749127][ C1] kasan_report+0x117/0x150 [ 162.749155][ C1] ? lbmIODone+0x1312/0x16c0 [ 162.749198][ C1] lbmIODone+0x1312/0x16c0 [ 162.749230][ C1] ? blkg_put+0x22/0x240 [ 162.749252][ C1] ? blkg_put+0x22/0x240 [ 162.749274][ C1] ? blkg_put+0x18d/0x240 [ 162.749297][ C1] ? bio_endio+0x989/0x9d0 [ 162.749326][ C1] blk_update_request+0x57e/0xe60 [ 162.749361][ C1] blk_mq_end_request+0x3e/0x70 [ 162.749388][ C1] blk_done_softirq+0x10a/0x160 [ 162.749415][ C1] handle_softirqs+0x1de/0x6d0 [ 162.749446][ C1] ? smpboot_thread_fn+0x4d/0xa50 [ 162.749472][ C1] run_ksoftirqd+0x52/0x180 [ 162.749499][ C1] smpboot_thread_fn+0x541/0xa50 [ 162.749527][ C1] ? smpboot_thread_fn+0x4d/0xa50 [ 162.749558][ C1] kthread+0x388/0x470 [ 162.749588][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 162.749614][ C1] ? __pfx_kthread+0x10/0x10 [ 162.749644][ C1] ret_from_fork+0x514/0xb70 [ 162.749671][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 162.749696][ C1] ? __switch_to+0xc79/0x1410 [ 162.749730][ C1] ? __pfx_kthread+0x10/0x10 [ 162.749760][ C1] ret_from_fork_asm+0x1a/0x30 [ 162.749797][ C1] [ 162.749805][ C1] [ 162.749817][ C1] Allocated by task 6019: [ 162.749828][ C1] kasan_save_track+0x3e/0x80 [ 162.749849][ C1] __kasan_kmalloc+0x93/0xb0 [ 162.749869][ C1] __kmalloc_cache_noprof+0x3a6/0x690 [ 162.749891][ C1] lmLogInit+0x3e5/0x1a00 [ 162.749916][ C1] lmLogOpen+0x4e1/0xfa0 [ 162.749941][ C1] jfs_mount_rw+0xee/0x670 [ 162.749966][ C1] jfs_fill_super+0x754/0xd80 [ 162.749984][ C1] get_tree_bdev_flags+0x431/0x4f0 [ 162.750007][ C1] vfs_get_tree+0x92/0x2a0 [ 162.750054][ C1] do_new_mount+0x341/0xd30 [ 162.750083][ C1] __se_sys_mount+0x31d/0x420 [ 162.750113][ C1] do_syscall_64+0x15f/0xf80 [ 162.750142][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 162.750162][ C1] [ 162.750168][ C1] Freed by task 5804: [ 162.750181][ C1] kasan_save_track+0x3e/0x80 [ 162.750206][ C1] kasan_save_free_info+0x46/0x50 [ 162.750234][ C1] __kasan_slab_free+0x5c/0x80 [ 162.750254][ C1] kfree+0x1c5/0x6c0 [ 162.750272][ C1] lmLogShutdown+0x456/0x850 [ 162.750299][ C1] lmLogClose+0x28a/0x520 [ 162.750325][ C1] jfs_umount+0x2fb/0x3d0 [ 162.750349][ C1] jfs_put_super+0x8c/0x190 [ 162.750367][ C1] generic_shutdown_super+0x13d/0x2d0 [ 162.750386][ C1] kill_block_super+0x44/0x90 [ 162.750409][ C1] deactivate_locked_super+0xbc/0x130 [ 162.750427][ C1] cleanup_mnt+0x437/0x4d0 [ 162.750449][ C1] task_work_run+0x1d9/0x270 [ 162.750479][ C1] exit_to_user_mode_loop+0xf3/0x4d0 [ 162.750505][ C1] do_syscall_64+0x33e/0xf80 [ 162.750532][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 162.750552][ C1] [ 162.750557][ C1] The buggy address belongs to the object at ffff88803d768800 [ 162.750557][ C1] which belongs to the cache kmalloc-256 of size 256 [ 162.750575][ C1] The buggy address is located 8 bytes inside of [ 162.750575][ C1] freed 256-byte region [ffff88803d768800, ffff88803d768900) [ 162.750597][ C1] [ 162.750602][ C1] The buggy address belongs to the physical page: [ 162.750619][ C1] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3d768 [ 162.750640][ C1] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 162.750658][ C1] flags: 0x80000000000040(head|node=0|zone=1) [ 162.750680][ C1] page_type: f5(slab) [ 162.750701][ C1] raw: 0080000000000040 ffff88801a010b40 dead000000000100 dead000000000122 [ 162.750720][ C1] raw: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000 [ 162.750742][ C1] head: 0080000000000040 ffff88801a010b40 dead000000000100 dead000000000122 [ 162.750761][ C1] head: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000 [ 162.750781][ C1] head: 0080000000000001 ffffffffffffff81 00000000ffffffff 00000000ffffffff [ 162.750800][ C1] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000002 [ 162.750811][ C1] page dumped because: kasan: bad access detected [ 162.750826][ C1] page_owner tracks the page as allocated [ 162.750838][ C1] page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5755, tgid 5755 (udevd), ts 161811570679, free_ts 160835934677 [ 162.750876][ C1] post_alloc_hook+0x22d/0x280 [ 162.750899][ C1] get_page_from_freelist+0x27c8/0x2840 [ 162.750926][ C1] __alloc_frozen_pages_noprof+0x18d/0x380 [ 162.750952][ C1] allocate_slab+0x77/0x660 [ 162.750981][ C1] refill_objects+0x33c/0x3d0 [ 162.751008][ C1] __pcs_replace_empty_main+0x373/0x720 [ 162.751038][ C1] __kmalloc_noprof+0x530/0x7b0 [ 162.751060][ C1] security_inode_init_security+0x102/0x3d0 [ 162.751083][ C1] shmem_mknod+0x1fe/0x360 [ 162.751112][ C1] path_openat+0x13b4/0x38a0 [ 162.751134][ C1] do_file_open+0x23e/0x4a0 [ 162.751155][ C1] do_sys_openat2+0x113/0x200 [ 162.751194][ C1] __x64_sys_openat+0x138/0x170 [ 162.751225][ C1] do_syscall_64+0x15f/0xf80 [ 162.751254][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 162.751274][ C1] page last free pid 5755 tgid 5755 stack trace: [ 162.751287][ C1] __free_frozen_pages+0xfa6/0x10f0 [ 162.751310][ C1] __slab_free+0x252/0x2a0 [ 162.751332][ C1] qlist_free_all+0x99/0x100 [ 162.751350][ C1] kasan_quarantine_reduce+0x148/0x160 [ 162.751369][ C1] __kasan_slab_alloc+0x22/0x80 [ 162.751390][ C1] __kmalloc_noprof+0x399/0x7b0 [ 162.751417][ C1] tomoyo_realpath_from_path+0xe3/0x5d0 [ 162.751438][ C1] tomoyo_check_open_permission+0x229/0x470 [ 162.751467][ C1] security_file_open+0xa9/0x240 [ 162.751497][ C1] do_dentry_open+0x4c0/0x13e0 [ 162.751526][ C1] vfs_open+0x3b/0x350 [ 162.751554][ C1] path_openat+0x2e43/0x38a0 [ 162.751576][ C1] do_file_open+0x23e/0x4a0 [ 162.751598][ C1] do_sys_openat2+0x113/0x200 [ 162.751626][ C1] __x64_sys_openat+0x138/0x170 [ 162.751656][ C1] do_syscall_64+0x15f/0xf80 [ 162.751684][ C1] [ 162.751689][ C1] Memory state around the buggy address: [ 162.751699][ C1] ffff88803d768700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 162.751714][ C1] ffff88803d768780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 162.751729][ C1] >ffff88803d768800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 162.751740][ C1] ^ [ 162.751751][ C1] ffff88803d768880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 162.751765][ C1] ffff88803d768900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 162.751777][ C1] ================================================================== [ 162.756811][ C1] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 162.756874][ C1] CPU: 1 UID: 0 PID: 30 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 162.756947][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 162.756981][ C1] Call Trace: [ 162.757003][ C1] [ 162.757025][ C1] vpanic+0x56c/0xa60 [ 162.757120][ C1] ? __pfx_vpanic+0x10/0x10 [ 162.757197][ C1] ? __pfx___schedule+0x10/0x10 [ 162.757285][ C1] panic+0xc5/0xd0 [ 162.757351][ C1] ? __pfx_panic+0x10/0x10 [ 162.757424][ C1] ? preempt_schedule_thunk+0x16/0x30 [ 162.757539][ C1] ? lbmIODone+0x1312/0x16c0 [ 162.757635][ C1] check_panic_on_warn+0x89/0xb0 [ 162.757713][ C1] ? lbmIODone+0x1312/0x16c0 [ 162.757797][ C1] end_report+0x73/0x170 [ 162.757856][ C1] ? lbmIODone+0x1312/0x16c0 [ 162.757932][ C1] kasan_report+0x128/0x150 [ 162.758004][ C1] ? lbmIODone+0x1312/0x16c0 [ 162.758091][ C1] lbmIODone+0x1312/0x16c0 [ 162.758168][ C1] ? blkg_put+0x22/0x240 [ 162.758238][ C1] ? blkg_put+0x22/0x240 [ 162.758293][ C1] ? blkg_put+0x18d/0x240 [ 162.758357][ C1] ? bio_endio+0x989/0x9d0 [ 162.758432][ C1] blk_update_request+0x57e/0xe60 [ 162.758515][ C1] blk_mq_end_request+0x3e/0x70 [ 162.758590][ C1] blk_done_softirq+0x10a/0x160 [ 162.758656][ C1] handle_softirqs+0x1de/0x6d0 [ 162.758731][ C1] ? smpboot_thread_fn+0x4d/0xa50 [ 162.758802][ C1] run_ksoftirqd+0x52/0x180 [ 162.758891][ C1] smpboot_thread_fn+0x541/0xa50 [ 162.758979][ C1] ? smpboot_thread_fn+0x4d/0xa50 [ 162.759064][ C1] kthread+0x388/0x470 [ 162.759139][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 162.759214][ C1] ? __pfx_kthread+0x10/0x10 [ 162.759290][ C1] ret_from_fork+0x514/0xb70 [ 162.759356][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 162.759420][ C1] ? __switch_to+0xc79/0x1410 [ 162.759519][ C1] ? __pfx_kthread+0x10/0x10 [ 162.759594][ C1] ret_from_fork_asm+0x1a/0x30 [ 162.759690][ C1] [ 162.760302][ C1] Kernel Offset: disabled