CVE-2022-50676 (GCVE-0-2022-50676)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:29 – Updated: 2025-12-09 01:29
VLAI?
Title
net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks() syzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for commit ac3615e7f3cffe2a ("RDS: TCP: Reduce code duplication in rds_tcp_reset_callbacks()") added cancel_delayed_work_sync() into a section protected by lock_sock() without realizing that rds_send_xmit() might call lock_sock(). We don't need to protect cancel_delayed_work_sync() using lock_sock(), for even if rds_{send,recv}_worker() re-queued this work while __flush_work() from cancel_delayed_work_sync() was waiting for this work to complete, retried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP bit.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < 5d2ba255e93211e541373469dffbda7c99dfa0e5 (git)
Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < 2425007c0967a7c04b0dee7cce05ecf0ca869ad1 (git)
Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < e3cb25d3ad08f5dbd53ce2b31720cad529944322 (git)
Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < 360aa7219285fac63dab99706a16f2daf3222abe (git)
Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c (git)
Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < 30bfa5aa7228eb1e67663d67e553627e572cc717 (git)
Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < c380c28ab9b15fc53565909c814f6dd3e7f77c4b (git)
Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < afe7053c390fe8ff27d0c2ceaece5625283044ba (git)
Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < a91b750fd6629354460282bbf5146c01b05c4859 (git)
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    Linux Linux Affected: 4.8
Unaffected: 0 , < 4.8 (semver)
Unaffected: 4.9.331 , ≤ 4.9.* (semver)
Unaffected: 4.14.296 , ≤ 4.14.* (semver)
Unaffected: 4.19.262 , ≤ 4.19.* (semver)
Unaffected: 5.4.220 , ≤ 5.4.* (semver)
Unaffected: 5.10.150 , ≤ 5.10.* (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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