CVE-2026-43226 (GCVE-0-2026-43226)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-11 22:20
VLAI?
Title
net/rds: No shortcut out of RDS_CONN_ERROR
Summary
In the Linux kernel, the following vulnerability has been resolved: net/rds: No shortcut out of RDS_CONN_ERROR RDS connections carry a state "rds_conn_path::cp_state" and transitions from one state to another and are conditional upon an expected state: "rds_conn_path_transition." There is one exception to this conditionality, which is "RDS_CONN_ERROR" that can be enforced by "rds_conn_path_drop" regardless of what state the condition is currently in. But as soon as a connection enters state "RDS_CONN_ERROR", the connection handling code expects it to go through the shutdown-path. The RDS/TCP multipath changes added a shortcut out of "RDS_CONN_ERROR" straight back to "RDS_CONN_CONNECTING" via "rds_tcp_accept_one_path" (e.g. after "rds_tcp_state_change"). A subsequent "rds_tcp_reset_callbacks" can then transition the state to "RDS_CONN_RESETTING" with a shutdown-worker queued. That'll trip up "rds_conn_init_shutdown", which was never adjusted to handle "RDS_CONN_RESETTING" and subsequently drops the connection with the dreaded "DR_INV_CONN_STATE", which leaves "RDS_SHUTDOWN_WORK_QUEUED" on forever. So we do two things here: a) Don't shortcut "RDS_CONN_ERROR", but take the longer path through the shutdown code. b) Add "RDS_CONN_RESETTING" to the expected states in "rds_conn_init_shutdown" so that we won't error out and get stuck, if we ever hit weird state transitions like this again."
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5916e2c1554f3e36f770401c989c3c7fadf619ca , < 9bcd7c00691a2db9745817d5ea79262a503b135c (git)
Affected: 5916e2c1554f3e36f770401c989c3c7fadf619ca , < a179ac7be8f5a650d0068040705f4cddd6ca369c (git)
Affected: 5916e2c1554f3e36f770401c989c3c7fadf619ca , < 19e384a7d00d888303a8285977cdf1970c6cccd6 (git)
Affected: 5916e2c1554f3e36f770401c989c3c7fadf619ca , < f0f729bdffb08af32e0f54521b81b8a9e0321f16 (git)
Affected: 5916e2c1554f3e36f770401c989c3c7fadf619ca , < 81248b1eb3c5954cc1fc7b33b7c03e34d20cb8c8 (git)
Affected: 5916e2c1554f3e36f770401c989c3c7fadf619ca , < 899ef00963ce76f9fc421a7d02335fe4ead6389b (git)
Affected: 5916e2c1554f3e36f770401c989c3c7fadf619ca , < 9ff599a9be784a808c36765086e3db2144aa3b66 (git)
Affected: 5916e2c1554f3e36f770401c989c3c7fadf619ca , < ad22d24be635c6beab6a1fdd3f8b1f3c478d15da (git)
Create a notification for this product.
Linux Linux Affected: 4.8
Unaffected: 0 , < 4.8 (semver)
Unaffected: 5.10.252 , ≤ 5.10.* (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (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.
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