CVE-2022-49589

Summary

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

igmp: Fix data-races around sysctl_igmp_qrv.

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

This test can be packed into a helper, so such changes will be in the follow-up series after net is merged into net-next.

qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv);

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxa9fe8e29945d56f35235a3a0fba99b4cf181d211 < 9eeb3a7702998bdccbfcc37997b5dd9215b9a7f7affected
LinuxLinuxa9fe8e29945d56f35235a3a0fba99b4cf181d211 < e20dd1b0e0ea15bee1e528536a0840dba972ca0eaffected
LinuxLinuxa9fe8e29945d56f35235a3a0fba99b4cf181d211 < b399ffafffba39f47b731b26a5da1dc0ffc4b3adaffected
LinuxLinuxa9fe8e29945d56f35235a3a0fba99b4cf181d211 < c721324afc589f8ea54bae04756b150aeaae5fa4affected
LinuxLinuxa9fe8e29945d56f35235a3a0fba99b4cf181d211 < c2954671010cd1127d1ffa328c6e6f8e99930982affected
LinuxLinuxa9fe8e29945d56f35235a3a0fba99b4cf181d211 < 8ebcc62c738f68688ee7c6fec2efe5bc6d3d7e60affected
LinuxLinux3.18affected
LinuxLinux0 < 3.18unaffected
LinuxLinux4.19.255 <= 4.19.*unaffected
LinuxLinux5.4.209 <= 5.4.*unaffected
LinuxLinux5.10.135 <= 5.10.*unaffected
LinuxLinux5.15.59 <= 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