Skip to main content
cve.nowby Sazabi
← All vulnerabilities
CVE-2024-49977

net: stmmac: Fix zero-division error when disabling tc cbs

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.227, 5.15.168, 6.1.113, 6.6.55, 6.10, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Fix zero-division error when disabling tc cbs The commit b8c43360f6e4 ("net: stmmac: No need to calculate speed divider when offload is disabled") allows the "port_transmit_rate_kbps" to be set to a value of 0, which is then passed to the "div_s64" function when tc-cbs is disabled. This leads to a zero-division error. When tc-cbs is disabled, the idleslope, sendslope, and credit values the credit values are not required to be configured. Therefore, adding a return statement after setting the txQ mode to DCB when tc-cbs is disabled would prevent a zero-division error.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From b4bca4722fda928810d024350493990de39f1e40 · fixed in e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c; From 2145583e5995598f50d66f8710c86bb1e910ac46 · fixed in b0da9504a528f05f97d926b4db74ff21917a33e9; From 521d42a1c24d638241220d4b9fa7e7a0ed02b88e · fixed in 5d43e1ad4567d67af2b42d3ab7c14152ffed25c6; From a71b686418ee6bcb6d6365f7f6d838d9874d9c64 · fixed in 03582f4752427f60817d896f1a827aff772bd31e; From b8c43360f6e424131fa81d3ba8792ad8ff25a09e · fixed in e297a2bf56d12fd7f91a0c209eb6ea84361f3368; From b8c43360f6e424131fa81d3ba8792ad8ff25a09e · fixed in 837d9df9c0792902710149d1a5e0991520af0f93; From b8c43360f6e424131fa81d3ba8792ad8ff25a09e · fixed in 675faf5a14c14a2be0b870db30a70764df81e2df; From 5.10.221 · fixed in 5.10.227; From 5.15.162 · fixed in 5.15.168; From 6.1.96 · fixed in 6.1.113; From 6.6.36 · fixed in 6.6.55; From 6.9.7 · fixed in 6.10

  • Linux Linux

    6.10

  • KernelLinux

    fixed in 5.10.227; From 5.11.0 · fixed in 5.15.168; From 5.16.0 · fixed in 6.1.113; From 6.2.0 · fixed in 6.6.55; From 6.7.0 · fixed in 6.10.14; From 6.10.0 · fixed in 6.11.3

References 7

git.kernel.org