CVE-2024-41007 (GCVE-0-2024-41007)

Vulnerability from cvelistv5 – Published: 2024-07-15 08:48 – Updated: 2025-11-03 21:59
VLAI?
Title
tcp: avoid too many retransmit packets
Summary
In the Linux kernel, the following vulnerability has been resolved: tcp: avoid too many retransmit packets If a TCP socket is using TCP_USER_TIMEOUT, and the other peer retracted its window to zero, tcp_retransmit_timer() can retransmit a packet every two jiffies (2 ms for HZ=1000), for about 4 minutes after TCP_USER_TIMEOUT has 'expired'. The fix is to make sure tcp_rtx_probe0_timed_out() takes icsk->icsk_user_timeout into account. Before blamed commit, the socket would not timeout after icsk->icsk_user_timeout, but would use standard exponential backoff for the retransmits. Also worth noting that before commit e89688e3e978 ("net: tcp: fix unexcepted socket die when snd_wnd is 0"), the issue would last 2 minutes instead of 4.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: b701a99e431db784714c32fc6b68123045714679 , < 7bb7670f92bfbd05fc41a8f9a8f358b7ffed65f4 (git)
Affected: b701a99e431db784714c32fc6b68123045714679 , < d2346fca5bed130dc712f276ac63450201d52969 (git)
Affected: b701a99e431db784714c32fc6b68123045714679 , < 5d7e64d70a11d988553a08239c810a658e841982 (git)
Affected: b701a99e431db784714c32fc6b68123045714679 , < 04317a2471c2f637b4c49cbd0e9c0d04a519f570 (git)
Affected: b701a99e431db784714c32fc6b68123045714679 , < e113cddefa27bbf5a79f72387b8fbd432a61a466 (git)
Affected: b701a99e431db784714c32fc6b68123045714679 , < dfcdd7f89e401d2c6616be90c76c2fac3fa98fde (git)
Affected: b701a99e431db784714c32fc6b68123045714679 , < 66cb64a1d2239cd0309f9b5038b05462570a5be1 (git)
Affected: b701a99e431db784714c32fc6b68123045714679 , < 97a9063518f198ec0adb2ecb89789de342bb8283 (git)
Create a notification for this product.
    Linux Linux Affected: 4.19
Unaffected: 0 , < 4.19 (semver)
Unaffected: 4.19.318 , ≤ 4.19.* (semver)
Unaffected: 5.4.280 , ≤ 5.4.* (semver)
Unaffected: 5.10.222 , ≤ 5.10.* (semver)
Unaffected: 5.15.163 , ≤ 5.15.* (semver)
Unaffected: 6.1.100 , ≤ 6.1.* (semver)
Unaffected: 6.6.41 , ≤ 6.6.* (semver)
Unaffected: 6.9.10 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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