CVE-2022-49497

Summary

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

net: remove two BUG() from skb_checksum_help()

I have a syzbot report that managed to get a crash in skb_checksum_help()

If syzbot can trigger these BUG(), it makes sense to replace them with more friendly WARN_ON_ONCE() since skb_checksum_help() can instead return an error code.

Note that syzbot will still crash there, until real bug is fixed.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxa030847e9f0eed2a080f6114381c649a7aa43d25 < 312c43e98ed190bd8fd7a71a0addf9539d5b8ab1affected
LinuxLinuxa030847e9f0eed2a080f6114381c649a7aa43d25 < 6320ae1b5876c30bf98203b6a5abe8b5c45e6a04affected
LinuxLinuxa030847e9f0eed2a080f6114381c649a7aa43d25 < d5281245f3502e960cb6b89348767b935379cee3affected
LinuxLinuxa030847e9f0eed2a080f6114381c649a7aa43d25 < b1320c9a4d30ff54b824a8ad6036e0b5fb4c5e73affected
LinuxLinuxa030847e9f0eed2a080f6114381c649a7aa43d25 < d7ea0d9df2a6265b2b180d17ebc64b38105968fcaffected
LinuxLinux2.6.24affected
LinuxLinux0 < 2.6.24unaffected
LinuxLinux5.10.121 <= 5.10.*unaffected
LinuxLinux5.15.46 <= 5.15.*unaffected
LinuxLinux5.17.14 <= 5.17.*unaffected
LinuxLinux5.18.3 <= 5.18.*unaffected
LinuxLinux5.19 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References