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CVE-2024-50169— vsock: Update rx_bytes on read_skb()

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，该漏洞源于在read_skb函数中未更新rx_bytes。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.21% · P12

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 634f1a7110b439c65fd8a809171c1d2d28bcea6f< 66cd51de31c682a311c2fa25c580b7ea45859dd9 affected
634f1a7110b439c65fd8a809171c1d2d28bcea6f< e5ca2b98090b4bb1c393088c724af6c37812a829 affected
634f1a7110b439c65fd8a809171c1d2d28bcea6f< 3543152f2d330141d9394d28855cb90b860091d2 affected
6.4 affected
< 6.4 unaffected
6.6.59≤ 6.6.* unaffected
6.11.6≤ 6.11.* unaffected
6.12≤ * unaffected
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I. Basic Information for CVE-2024-50169

Vulnerability Information
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Vulnerability Title
vsock: Update rx_bytes on read_skb()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: vsock: Update rx_bytes on read_skb() Make sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt() calls are balanced (i.e. virtio_vsock_sock::rx_bytes doesn't lie) after vsock_transport::read_skb(). While here, also inform the peer that we've freed up space and it has more credit. Failing to update rx_bytes after packet is dequeued leads to a warning on SOCK_STREAM recv(): [ 233.396654] rx_queue is empty, but rx_bytes is non-zero [ 233.396702] WARNING: CPU: 11 PID: 40601 at net/vmw_vsock/virtio_transport_common.c:589
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，该漏洞源于在read_skb函数中未更新rx_bytes。
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 634f1a7110b439c65fd8a809171c1d2d28bcea6f ~ 66cd51de31c682a311c2fa25c580b7ea45859dd9 -
Linux Linux 6.4 -

II. Public POCs for CVE-2024-50169

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III. Intelligence Information for CVE-2024-50169

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Patches & Fixes for CVE-2024-50169 (3)

Same Patch Batch · Linux · 2024-11-07 · 34 CVEs total

CVE-2024-50162 9.8 CRITICAL bpf: devmap: provide rxq after redirect
CVE-2024-50154 9.8 CRITICAL tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink().
CVE-2024-50152 9.8 CRITICAL smb: client: fix possible double free in smb2_set_ea()
CVE-2024-50139 7.9 HIGH KVM: arm64: Fix shift-out-of-bounds bug
CVE-2024-50150 7.8 HIGH usb: typec: altmode should keep reference to parent
CVE-2024-50161 7.8 HIGH bpf: Check the remaining info_cnt before repeating btf fields
CVE-2024-50158 7.8 HIGH RDMA/bnxt_re: Fix out of bound check
CVE-2024-50164 7.8 HIGH bpf: Fix overloading of MEM_UNINIT's meaning
CVE-2024-50165 7.8 HIGH bpf: Preserve param->string when parsing mount options
CVE-2024-50151 7.8 HIGH smb: client: fix OOBs when building SMB2_IOCTL request
CVE-2024-50149 7.8 HIGH drm/xe: Don't free job in TDR
CVE-2024-50143 7.8 HIGH udf: fix uninit-value use in udf_get_fileshortad
CVE-2024-50141 7.8 HIGH ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context
CVE-2024-50145 7.5 HIGH octeon_ep: Add SKB allocation failures handling in __octep_oq_process_rx()
CVE-2024-50170 7.5 HIGH net: bcmasp: fix potential memory leak in bcmasp_xmit()
CVE-2024-50159 7.0 HIGH firmware: arm_scmi: Fix the double free in scmi_debugfs_common_setup()
CVE-2024-50155 netdevsim: use cond_resched() in nsim_dev_trap_report_work()
CVE-2024-50166 fsl/fman: Fix refcount handling of fman-related devices
CVE-2024-50167 be2net: fix potential memory leak in be_xmit()
CVE-2024-50168 net/sun3_82586: fix potential memory leak in sun3_82586_send_packet()

Showing top 20 of 34 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-50169

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