syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) Warning: Permanently added '[localhost]:7380' (ED25519) to the list of known hosts. 2026/08/16 21:27:06 parsed 1 programs 2026/08/16 21:27:06 serving rpc on tcp://32907 [ 89.076439][ T5285] cgroup: Unknown subsys name 'net' [ 89.130365][ T5285] cgroup: Unknown subsys name 'cpuset' [ 89.137967][ T5285] cgroup: Unknown subsys name 'rlimit' [ 91.779675][ T9] cfg80211: failed to load regulatory.db [ 110.993260][ T1020] ata1.00: exception Emask 0x0 SAct 0x200000 SErr 0x0 action 0x6 frozen [ 110.996712][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 110.999184][ T1020] ata1.00: cmd 61/00:a8:36:c1:04/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou [ 110.999184][ T1020] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 111.006546][ T1020] ata1.00: status: { DRDY } [ 111.008637][ T1020] ata1: hard resetting link [ 111.325869][ T1020] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 111.330928][ T1020] ata1.00: configured for UDMA/100 [ 111.333856][ T1020] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 111.374443][ T1020] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 111.377067][ T1020] ata1: failed to read log page 10h (errno=-5) [ 111.379591][ T1020] ata1.00: exception Emask 0x1 SAct 0xea00 SErr 0x0 action 0x0 [ 111.384190][ T1020] ata1.00: irq_stat 0x41000000 [ 111.386278][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.388816][ T1020] ata1.00: cmd 61/b0:48:86:e6:04/1a:00:00:00:00/40 tag 9 ncq dma 3497984 ou [ 111.388816][ T1020] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.396450][ T1020] ata1.00: status: { DRDY } [ 111.398567][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.401042][ T1020] ata1.00: cmd 61/08:58:3e:04:10/00:00:00:00:00/40 tag 11 ncq dma 4096 out [ 111.401042][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.408369][ T1020] ata1.00: status: { DRDY } [ 111.410421][ T1020] ata1.00: error: { ABRT } [ 111.412269][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.415245][ T1020] ata1.00: cmd 61/00:68:36:01:05/20:00:00:00:00/40 tag 13 ncq dma 4194304 ou [ 111.415245][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.422424][ T1020] ata1.00: status: { DRDY } [ 111.424429][ T1020] ata1.00: error: { ABRT } [ 111.426389][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.428681][ T1020] ata1.00: cmd 61/00:70:36:c1:04/20:00:00:00:00/40 tag 14 ncq dma 4194304 ou [ 111.428681][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.435904][ T1020] ata1.00: status: { DRDY } [ 111.437859][ T1020] ata1.00: error: { ABRT } [ 111.439727][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.445030][ T1020] ata1.00: cmd 61/00:78:36:21:05/20:00:00:00:00/40 tag 15 ncq dma 4194304 ou [ 111.445030][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.452179][ T1020] ata1.00: status: { DRDY } [ 111.455482][ T1020] ata1.00: error: { ABRT } [ 111.458340][ T1020] ata1.00: configured for UDMA/100 [ 111.460983][ T1020] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 111.483887][ T1020] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 111.486692][ T1020] ata1: failed to read log page 10h (errno=-5) [ 111.489169][ T1020] ata1.00: NCQ disabled due to excessive errors [ 111.491687][ T1020] ata1.00: exception Emask 0x1 SAct 0x3f00000 SErr 0x0 action 0x0 [ 111.495155][ T1020] ata1.00: irq_stat 0x41000008 [ 111.496990][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.499174][ T1020] ata1.00: cmd 61/b0:a0:86:e6:04/1a:00:00:00:00/40 tag 20 ncq dma 3497984 ou [ 111.499174][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.506741][ T1020] ata1.00: status: { DRDY } [ 111.508853][ T1020] ata1.00: error: { ABRT } [ 111.510642][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.513293][ T1020] ata1.00: cmd 61/08:a8:3e:04:10/00:00:00:00:00/40 tag 21 ncq dma 4096 out [ 111.513293][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.519771][ T1020] ata1.00: status: { DRDY } [ 111.521727][ T1020] ata1.00: error: { ABRT } [ 111.524600][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.527893][ T1020] ata1.00: cmd 61/00:b0:36:01:05/20:00:00:00:00/40 tag 22 ncq dma 4194304 ou [ 111.527893][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.535048][ T1020] ata1.00: status: { DRDY } [ 111.536906][ T1020] ata1.00: error: { ABRT } [ 111.538638][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.540922][ T1020] ata1.00: cmd 61/00:b8:36:c1:04/20:00:00:00:00/40 tag 23 ncq dma 4194304 ou [ 111.540922][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.548606][ T1020] ata1.00: status: { DRDY } [ 111.550498][ T1020] ata1.00: error: { ABRT } [ 111.552347][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.555495][ T1020] ata1.00: cmd 61/00:c0:36:21:05/20:00:00:00:00/40 tag 24 ncq dma 4194304 ou [ 111.555495][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.562948][ T1020] ata1.00: status: { DRDY } [ 111.565579][ T1020] ata1.00: error: { ABRT } [ 111.567459][ T1020] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.569977][ T1020] ata1.00: cmd 61/00:c8:36:61:05/20:00:00:00:00/40 tag 25 ncq dma 4194304 ou [ 111.569977][ T1020] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.577031][ T1020] ata1.00: status: { DRDY } [ 111.579060][ T1020] ata1.00: error: { ABRT } [ 111.582098][ T1020] ata1.00: configured for UDMA/100 [ 111.586767][ T1020] ata1: EH complete 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.