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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2024-44974

mptcp: pm: avoid possible UaF when selecting endp

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: avoid possible UaF when selecting endp select_local_address() and select_signal_address() both select an endpoint entry from the list inside an RCU protected section, but return a reference to it, to be read later on. If the entry is dereferenced after the RCU unlock, reading info could cause a Use-after-Free. A simple solution is to copy the required info while inside the RCU protected section to avoid any risk of UaF later. The address ID might need to be modified later to handle the ID0 case later, so a copy seems OK to deal with.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 01cacb00b35cb62b139f07d5f84bcf0eeda8eff6 to < ddee5b4b6a1cc03c1e9921cf34382e094c2009f1affected
  • 01cacb00b35cb62b139f07d5f84bcf0eeda8eff6 to < f2c865e9e3ca44fc06b5f73b29a954775e4dbb38affected
  • 01cacb00b35cb62b139f07d5f84bcf0eeda8eff6 to < 2b4f46f9503633dade75cb796dd1949d0e6581a1affected
  • 01cacb00b35cb62b139f07d5f84bcf0eeda8eff6 to < 9a9afbbc3fbfca4975eea4aa5b18556db5a0c0b8affected
  • 01cacb00b35cb62b139f07d5f84bcf0eeda8eff6 to < 0201d65d9806d287a00e0ba96f0321835631f63faffected
  • 01cacb00b35cb62b139f07d5f84bcf0eeda8eff6 to < 48e50dcbcbaaf713d82bf2da5c16aeced94ad07daffected

Linux Linux

Default version status: affected

  • 5.7affected
  • 0 to < 5.7unaffected
  • 5.10.226 to ≤ 5.10.*unaffected
  • 5.15.167 to ≤ 5.15.*unaffected
  • 6.1.109 to ≤ 6.1.*unaffected
  • 6.6.48 to ≤ 6.6.*unaffected
  • 6.10.7 to ≤ 6.10.*unaffected
  • 6.11 to ≤ *unaffected

References