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CVE-2024-43819— kvm: s390: Reject memory region operations for ucontrol VMs

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.21% · P11

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux 27e0393f15fc8bc855c6a888387ff5ffd2181089< 49c9945c054df4c22008e2bf87ca74d3e2507aa6 affected
27e0393f15fc8bc855c6a888387ff5ffd2181089< 7816e58967d0e6cadce05c8540b47ed027dc2499 affected
3.4 affected
< 3.4 unaffected
6.10.3≤ 6.10.* unaffected
6.11≤ * unaffected
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I. Basic Information for CVE-2024-43819

Vulnerability Information
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Vulnerability Title
kvm: s390: Reject memory region operations for ucontrol VMs
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: kvm: s390: Reject memory region operations for ucontrol VMs This change rejects the KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2 ioctls when called on a ucontrol VM. This is necessary since ucontrol VMs have kvm->arch.gmap set to 0 and would thus result in a null pointer dereference further in. Memory management needs to be performed in userspace and using the ioctls KVM_S390_UCAS_MAP and KVM_S390_UCAS_UNMAP. Also improve s390 specific documentation for KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2. [frankja@linux.ibm.com: commit message spelling fix, subject prefix fix]
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 27e0393f15fc8bc855c6a888387ff5ffd2181089 ~ 49c9945c054df4c22008e2bf87ca74d3e2507aa6 -
Linux Linux 3.4 -

II. Public POCs for CVE-2024-43819

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III. Intelligence Information for CVE-2024-43819

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Other References for CVE-2024-43819 (2)

Same Patch Batch · Linux · 2024-08-17 · 109 CVEs total

CVE-2024-42285 9.8 CRITICAL RDMA/iwcm: Fix a use-after-free related to destroying CM IDs
CVE-2024-42284 9.1 CRITICAL tipc: Return non-zero value from tipc_udp_addr2str() on error
CVE-2024-42318 8.8 HIGH landlock: Don't lose track of restrictions on cred_transfer
CVE-2024-43848 8.8 HIGH wifi: mac80211: fix TTLM teardown work
CVE-2024-43847 8.8 HIGH wifi: ath12k: fix invalid memory access while processing fragmented packets
CVE-2024-42287 8.8 HIGH scsi: qla2xxx: Complete command early within lock
CVE-2024-42296 7.8 HIGH f2fs: fix return value of f2fs_convert_inline_inode()
CVE-2024-42299 7.8 HIGH fs/ntfs3: Update log->page_{mask,bits} if log->page_size changed
CVE-2024-42280 7.8 HIGH mISDN: Fix a use after free in hfcmulti_tx()
CVE-2024-42314 7.8 HIGH btrfs: fix extent map use-after-free when adding pages to compressed bio
CVE-2024-43846 7.8 HIGH lib: objagg: Fix general protection fault
CVE-2024-42297 7.8 HIGH f2fs: fix to don't dirty inode for readonly filesystem
CVE-2024-43840 7.8 HIGH bpf, arm64: Fix trampoline for BPF_TRAMP_F_CALL_ORIG
CVE-2024-42279 7.8 HIGH spi: microchip-core: ensure TX and RX FIFOs are empty at start of a transfer
CVE-2024-42293 7.8 HIGH arm64: mm: Fix lockless walks with static and dynamic page-table folding
CVE-2024-43830 7.8 HIGH leds: trigger: Unregister sysfs attributes before calling deactivate()
CVE-2024-42300 7.8 HIGH erofs: fix race in z_erofs_get_gbuf()
CVE-2024-43832 7.8 HIGH s390/uv: Don't call folio_wait_writeback() without a folio reference
CVE-2024-43845 7.8 HIGH udf: Fix bogus checksum computation in udf_rename()
CVE-2024-42288 7.8 HIGH scsi: qla2xxx: Fix for possible memory corruption

Showing top 20 of 109 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-43819

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