{"vulnerability": "CVE-2024-45005", "sightings": [{"uuid": "ce7dc813-1f3a-4bca-83dc-c65f1cde506e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2024-45005", "type": "seen", "source": "https://t.me/cvedetector/4861", "content": "{\n  \"Source\": \"CVE FEED\",\n  \"Title\": \"CVE-2024-45005 - IBM S390 KVM SIE Validity Interception Vulnerability\", \n  \"Content\": \"CVE ID : CVE-2024-45005 \nPublished : Sept. 4, 2024, 8:15 p.m. | 27\u00a0minutes ago \nDescription : In the Linux kernel, the following vulnerability has been resolved:  \n  \nKVM: s390: fix validity interception issue when gisa is switched off  \n  \nWe might run into a SIE validity if gisa has been disabled either via using  \nkernel parameter \"kvm.use_gisa=0\" or by setting the related sysfs  \nattribute to N (echo N >/sys/module/kvm/parameters/use_gisa).  \n  \nThe validity is caused by an invalid value in the SIE control block's  \ngisa designation. That happens because we pass the uninitialized gisa  \norigin to virt_to_phys() before writing it to the gisa designation.  \n  \nTo fix this we return 0 in kvm_s390_get_gisa_desc() if the origin is 0.  \nkvm_s390_get_gisa_desc() is used to determine which gisa designation to  \nset in the SIE control block. A value of 0 in the gisa designation disables  \ngisa usage.  \n  \nThe issue surfaces in the host kernel with the following kernel message as  \nsoon a new kvm guest start is attemted.  \n  \nkvm: unhandled validity intercept 0x1011  \nWARNING: CPU: 0 PID: 781237 at arch/s390/kvm/intercept.c:101 kvm_handle_sie_intercept+0x42e/0x4d0 [kvm]  \nModules linked in: vhost_net tap tun xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT xt_tcpudp nft_compat x_tables nf_nat_tftp nf_conntrack_tftp vfio_pci_core irqbypass vhost_vsock vmw_vsock_virtio_transport_common vsock vhost vhost_iotlb kvm nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables sunrpc mlx5_ib ib_uverbs ib_core mlx5_core uvdevice s390_trng eadm_sch vfio_ccw zcrypt_cex4 mdev vfio_iommu_type1 vfio sch_fq_codel drm i2c_core loop drm_panel_orientation_quirks configfs nfnetlink lcs ctcm fsm dm_service_time ghash_s390 prng chacha_s390 libchacha aes_s390 des_s390 libdes sha3_512_s390 sha3_256_s390 sha512_s390 sha256_s390 sha1_s390 sha_common dm_mirror dm_region_hash dm_log zfcp scsi_transport_fc scsi_dh_rdac scsi_dh_emc scsi_dh_alua pkey zcrypt dm_multipath rng_core autofs4 [last unloaded: vfio_pci]  \nCPU: 0 PID: 781237 Comm: CPU 0/KVM Not tainted 6.10.0-08682-gcad9f11498ea #6  \nHardware name: IBM 3931 A01 701 (LPAR)  \nKrnl PSW : 0704c00180000000 000003d93deb0122 (kvm_handle_sie_intercept+0x432/0x4d0 [kvm])  \n           R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3  \nKrnl GPRS: 000003d900000027 000003d900000023 0000000000000028 000002cd00000000  \n           000002d063a00900 00000359c6daf708 00000000000bebb5 0000000000001eff  \n           000002cfd82e9000 000002cfd80bc000 0000000000001011 000003d93deda412  \n           000003ff8962df98 000003d93de77ce0 000003d93deb011e 00000359c6daf960  \nKrnl Code: 000003d93deb0112: c020fffe7259 larl %r2,000003d93de7e5c4  \n           000003d93deb0118: c0e53fa8beac brasl %r14,000003d9bd3c7e70  \n          #000003d93deb011e: af000000  mc 0,0  \n          >000003d93deb0122: a728ffea  lhi %r2,-22  \n           000003d93deb0126: a7f4fe24  brc 15,000003d93deafd6e  \n           000003d93deb012a: 9101f0b0  tm 176(%r15),1  \n           000003d93deb012e: a774fe48  brc 7,000003d93deafdbe  \n           000003d93deb0132: 40a0f0ae  sth %r10,174(%r15)  \nCall Trace:  \n [] kvm_handle_sie_intercept+0x432/0x4d0 [kvm]  \n([] kvm_handle_sie_intercept+0x42e/0x4d0 [kvm])  \n [] vcpu_post_run+0x1d0/0x3b0 [kvm]  \n [] __vcpu_run+0xea/0x2d0 [kvm]  \n [] kvm_arch_vcpu_ioctl_run+0x16a/0x430 [kvm]  \n [] kvm_vcpu_ioctl+0x190/0x7c0 [kvm]  \n [] vfs_ioctl+0x2e/0x70  \n [] __s390x_sys_ioctl+0xc2/0xd0  \n [] __do_syscall+0x1f2/0x2e0  \n [] system_call+0x70/0x98  \nLast Breaking-Event-Address:  \n [] __warn_printk+0xe8/0xf0 \nSeverity: 0.0 | NA \nVisit the link for more details, such as CVSS details, affected products, timeline, and more...\",\n  \"Detection Date\": \"04 Sep 2024\",\n  \"Type\": \"Vulnerability\"\n}\n\ud83d\udd39 t.me/cvedetector \ud83d\udd39", "creation_timestamp": "2024-09-04T22:47:29.000000Z"}]}