CVE-2022-49587

Summary

In the Linux kernel, the following vulnerability has been resolved:

tcp: Fix a data-race around sysctl_tcp_notsent_lowat.

While reading sysctl_tcp_notsent_lowat, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxc9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 < 91e21df688f8a75255ca9c459da39ac96300113aaffected
LinuxLinuxc9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 < c1b85c5a34294f7444c13bf828e0e84b0a0eed85affected
LinuxLinuxc9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 < 0f75343584ee474303e17efe0610bdd170af1d13affected
LinuxLinuxc9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 < e9362a993886613ef0284c2a4911c6017c97d803affected
LinuxLinuxc9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 < fd6f1284e380c377932186042ff0b5c987fb2b92affected
LinuxLinuxc9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 < 80d4d0c461674eea87f0977e12a2ecd334b9b79caffected
LinuxLinuxc9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 < 62e56cfeb2ae4b53ae9ca24c80f54093250ce64aaffected
LinuxLinuxc9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 < 55be873695ed8912eb77ff46d1d1cadf028bd0f3affected
LinuxLinux3.12affected
LinuxLinux0 < 3.12unaffected
LinuxLinux4.9.325 <= 4.9.*unaffected
LinuxLinux4.14.290 <= 4.14.*unaffected
LinuxLinux4.19.254 <= 4.19.*unaffected
LinuxLinux5.4.208 <= 5.4.*unaffected
LinuxLinux5.10.134 <= 5.10.*unaffected
LinuxLinux5.15.58 <= 5.15.*unaffected
LinuxLinux5.18.15 <= 5.18.*unaffected
LinuxLinux5.19 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References