15-Aug-2026 15:00:07: building syzkaller on 1c8c8cd830af4deee250ad11f1613d1d9a62ca0b... 15-Aug-2026 15:00:33: fetching kernel... 15-Aug-2026 15:00:36: checked out kernel commit 15ef2f78c49d20d53ec7c0f1c9b40b02e089f2d6 ("Merge tag 'input-for-v7.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input", 2026-08-14 21:51:26 -0700 -0700) 15-Aug-2026 15:00:36: cleaning kernel... 15-Aug-2026 15:00:38: building kernel... 15-Aug-2026 15:11:51: kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 15-Aug-2026 15:11:51: testing patch... 15-Aug-2026 15:14:39: aggregating test results failed: lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) Warning: Permanently added '[localhost]:65038' (ED25519) to the list of known hosts. 2026/08/15 15:13:22 parsed 1 programs [ 89.682330][ T5283] cgroup: Unknown subsys name 'net' [ 89.736040][ T5283] cgroup: Unknown subsys name 'cpuset' [ 89.743676][ T5283] cgroup: Unknown subsys name 'rlimit' [ 91.856876][ T796] cfg80211: failed to load regulatory.db [ 110.429460][ T1021] ata1.00: exception Emask 0x0 SAct 0x100 SErr 0x0 action 0x6 frozen [ 110.432846][ T1021] ata1.00: failed command: WRITE FPDMA QUEUED [ 110.435289][ T1021] ata1.00: cmd 61/00:40:36:c1:04/20:00:00:00:00/40 tag 8 ncq dma 4194304 ou [ 110.435289][ T1021] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 110.442301][ T1021] ata1.00: status: { DRDY } [ 110.444848][ T1021] ata1: hard resetting link [ 110.760452][ T1021] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 110.764618][ T1021] ata1.00: configured for UDMA/100 [ 110.767033][ T1021] ata1: EH complete [ 112.249556][ T5283] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 119.659710][ T5312] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 123.001232][ T41] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 123.041724][ T41] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 124.360679][ T91] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 124.382962][ T91] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 125.277370][ T44] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 125.282599][ T44] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 125.287541][ T44] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 125.292462][ T44] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 125.295897][ T44] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 126.218781][ T5321] syz-executor (5321) used greatest stack depth: 17664 bytes left [ 127.370329][ T44] Bluetooth: hci0: command tx timeout [ 129.451106][ T44] Bluetooth: hci0: command tx timeout [ 130.797713][ T5339] bridge0: port 1(bridge_slave_0) entered blocking state [ 130.810286][ T5339] bridge0: port 1(bridge_slave_0) entered disabled state [ 130.822018][ T5339] bridge_slave_0: entered allmulticast mode [ 130.837749][ T5339] bridge_slave_0: entered promiscuous mode [ 131.080877][ T5339] bridge0: port 2(bridge_slave_1) entered blocking state [ 131.094035][ T5339] bridge0: port 2(bridge_slave_1) entered disabled state [ 131.103193][ T5339] bridge_slave_1: entered allmulticast mode [ 131.340520][ T5339] bridge_slave_1: entered promiscuous mode [ 131.529471][ T44] Bluetooth: hci0: command tx timeout [ 131.627649][ T5339] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 131.902428][ T5339] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 132.311936][ T5339] team0: Port device team_slave_0 added [ 132.326183][ T5339] team0: Port device team_slave_1 added [ 132.395967][ T5339] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 132.409110][ T5339] 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. [ 132.436157][ T5339] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 132.687865][ T5339] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 132.695715][ T5339] 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. [ 132.750083][ T5339] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 133.213210][ T5339] hsr_slave_0: entered promiscuous mode [ 133.217547][ T5339] hsr_slave_1: entered promiscuous mode [ 133.609286][ T44] Bluetooth: hci0: command tx timeout [ 135.459463][ T5339] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 135.502361][ T5339] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 135.512076][ T5339] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 135.532934][ T5339] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 135.537398][ T5339] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 135.562346][ T5339] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 135.571602][ T5339] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 135.586706][ T5339] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 135.898454][ T5339] 8021q: adding VLAN 0 to HW filter on device bond0 [ 135.987706][ T5339] 8021q: adding VLAN 0 to HW filter on device team0 [ 136.031351][ T175] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.034919][ T175] bridge0: port 1(bridge_slave_0) entered forwarding state [ 136.116333][ T62] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.119503][ T62] bridge0: port 2(bridge_slave_1) entered forwarding state qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x257000) [ 137.244253][ T1021] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 137.260738][ T1021] ata1: failed to read log page 10h (errno=-5) [ 137.271668][ T1021] ata1.00: NCQ disabled due to excessive errors [ 137.282776][ T1021] ata1.00: exception Emask 0x1 SAct 0x800 SErr 0x0 action 0x0 [ 137.296164][ T1021] ata1.00: irq_stat 0x41000000 [ 137.304767][ T1021] ata1.00: failed command: READ FPDMA QUEUED [ 137.314436][ T1021] ata1.00: cmd 60/b8:58:96:0f:05/12:00:00:00:00/40 tag 11 ncq dma 2453504 in [ 137.314436][ T1021] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 137.335828][ T1021] ata1.00: status: { DRDY } [ 137.342707][ T1021] ata1.00: error: { ABRT } [ 137.352592][ T1021] ata1.00: configured for UDMA/100 [ 137.360967][ T1021] sd 0:0:0:0: [sda] tag#11 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s [ 137.377783][ T1021] sd 0:0:0:0: [sda] tag#11 Sense Key : Aborted Command [current] [ 137.393552][ T1021] sd 0:0:0:0: [sda] tag#11 Add. Sense: No additional sense information [ 137.405572][ T1021] sd 0:0:0:0: [sda] tag#11 CDB: Read(10) 28 00 00 05 0f 96 00 12 b8 00 [ 137.417472][ T1021] I/O error, dev sda, sector 331670 op 0x0:(READ) flags 0x84700 phys_seg 168 prio class 2 [ 137.434347][ T1021] ata1: EH complete [ 137.475044][ T5339] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 137.622849][ T5339] veth0_vlan: entered promiscuous mode [ 137.660269][ T5339] veth1_vlan: entered promiscuous mode [ 137.744270][ T5339] veth0_macvtap: entered promiscuous mode [ 137.768009][ T5339] veth1_macvtap: entered promiscuous mode [ 137.831849][ T5339] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 137.858426][ T5339] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 137.933020][ T1323] ieee802154 phy0 wpan0: encryption failed: -22 [ 137.937893][ T1323] ieee802154 phy1 wpan1: encryption failed: -22 [ 138.040178][ T175] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 138.109369][ T62] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 138.128236][ T62] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 138.144206][ T62] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 qemu-system-x86_64: hw/ide/core.c:925: ide_dma_cb: Assertion `prep_size >= 0 && prep_size <= n * 512' failed. Connection to localhost closed by remote host.