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CVE-2024-40931— mptcp: ensure snd_una is properly initialized on connect

EPSS 0.01% · P1

Affected Version Matrix 14

VendorProductVersion RangeStatus
LinuxLinux8fd738049ac3d67a937d36577763b47180aae1ad< 208cd22ef5e57f82d38ec11c1a1703f9401d6ddeaffected
8fd738049ac3d67a937d36577763b47180aae1ad< 7b9c7fc8600b64a86e4b47b2d190bba380267726affected
8fd738049ac3d67a937d36577763b47180aae1ad< f03c46eabb3a67bd2993e237ab5517f00a5f1813affected
8fd738049ac3d67a937d36577763b47180aae1ad< f1f0a46f8bb8890b90ab7194f0a0c8fe2a3fb57faffected
8fd738049ac3d67a937d36577763b47180aae1ad< ef473bf1dd7e8dd08bcc04b9e2d1bfed69a0a7ceaffected
8fd738049ac3d67a937d36577763b47180aae1ad< 8031b58c3a9b1db3ef68b3bd749fbee2e1e1aaa3affected
5.9affected
< 5.9unaffected
… +6 more rows
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I. Basic Information for CVE-2024-40931

Vulnerability Information
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Vulnerability Title
mptcp: ensure snd_una is properly initialized on connect
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure snd_una is properly initialized on connect This is strictly related to commit fb7a0d334894 ("mptcp: ensure snd_nxt is properly initialized on connect"). It turns out that syzkaller can trigger the retransmit after fallback and before processing any other incoming packet - so that snd_una is still left uninitialized. Address the issue explicitly initializing snd_una together with snd_nxt and write_seq.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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 mptcp 组件在连接时，未能正确初始化 snd_una。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 8fd738049ac3d67a937d36577763b47180aae1ad ~ 208cd22ef5e57f82d38ec11c1a1703f9401d6dde -
LinuxLinux 5.9 -

II. Public POCs for CVE-2024-40931

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III. Intelligence Information for CVE-2024-40931

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Same Patch Batch · Linux · 2024-07-12 · 122 CVEs total

CVE-2024-40960ipv6: prevent possible NULL dereference in rt6_probe()
CVE-2024-40975platform/x86: x86-android-tablets: Unregister devices in reverse order
CVE-2024-40974powerpc/pseries: Enforce hcall result buffer validity and size
CVE-2024-40973media: mtk-vcodec: potential null pointer deference in SCP
CVE-2024-40972ext4: do not create EA inode under buffer lock
CVE-2024-40970Avoid hw_desc array overrun in dw-axi-dmac
CVE-2024-40971f2fs: remove clear SB_INLINECRYPT flag in default_options
CVE-2024-40969f2fs: don't set RO when shutting down f2fs
CVE-2024-40967serial: imx: Introduce timeout when waiting on transmitter empty
CVE-2024-40968MIPS: Octeon: Add PCIe link status check
CVE-2024-40966tty: add the option to have a tty reject a new ldisc
CVE-2024-40965i2c: lpi2c: Avoid calling clk_get_rate during transfer
CVE-2024-40964ALSA: hda: cs35l41: Possible null pointer dereference in cs35l41_hda_unbind()
CVE-2024-40963mips: bmips: BCM6358: make sure CBR is correctly set
CVE-2024-40961ipv6: prevent possible NULL deref in fib6_nh_init()
CVE-2024-40962btrfs: zoned: allocate dummy checksums for zoned NODATASUM writes
CVE-2024-40951ocfs2: fix NULL pointer dereference in ocfs2_abort_trigger()
CVE-2024-40950mm: huge_memory: fix misused mapping_large_folio_support() for anon folios
CVE-2024-40949mm: shmem: fix getting incorrect lruvec when replacing a shmem folio
CVE-2024-40952ocfs2: fix NULL pointer dereference in ocfs2_journal_dirty()

Showing top 20 of 122 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-40931

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