net/rds: No shortcut out of RDS_CONN_ERROR

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Summary

CVECVE-2026-43226
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:42 UTC
Updated2026-05-08 21:17:34 UTC
DescriptionIn 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."

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000680000 probability, percentile 0.208080000 (date 2026-05-12)

Problem Types: NVD-CWE-noinfo

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 5916e2c1554f3e36f770401c989c3c7fadf619ca 9bcd7c00691a2db9745817d5ea79262a503b135c git Not specified
CNA Linux Linux affected 5916e2c1554f3e36f770401c989c3c7fadf619ca a179ac7be8f5a650d0068040705f4cddd6ca369c git Not specified
CNA Linux Linux affected 5916e2c1554f3e36f770401c989c3c7fadf619ca 19e384a7d00d888303a8285977cdf1970c6cccd6 git Not specified
CNA Linux Linux affected 5916e2c1554f3e36f770401c989c3c7fadf619ca f0f729bdffb08af32e0f54521b81b8a9e0321f16 git Not specified
CNA Linux Linux affected 5916e2c1554f3e36f770401c989c3c7fadf619ca 81248b1eb3c5954cc1fc7b33b7c03e34d20cb8c8 git Not specified
CNA Linux Linux affected 5916e2c1554f3e36f770401c989c3c7fadf619ca 899ef00963ce76f9fc421a7d02335fe4ead6389b git Not specified
CNA Linux Linux affected 5916e2c1554f3e36f770401c989c3c7fadf619ca 9ff599a9be784a808c36765086e3db2144aa3b66 git Not specified
CNA Linux Linux affected 5916e2c1554f3e36f770401c989c3c7fadf619ca ad22d24be635c6beab6a1fdd3f8b1f3c478d15da git Not specified
CNA Linux Linux affected 4.8 Not specified
CNA Linux Linux unaffected 4.8 semver Not specified
CNA Linux Linux unaffected 5.10.252 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.202 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.165 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.128 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9bcd7c00691a2db9745817d5ea79262a503b135c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9ff599a9be784a808c36765086e3db2144aa3b66 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/19e384a7d00d888303a8285977cdf1970c6cccd6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/899ef00963ce76f9fc421a7d02335fe4ead6389b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a179ac7be8f5a650d0068040705f4cddd6ca369c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ad22d24be635c6beab6a1fdd3f8b1f3c478d15da 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/81248b1eb3c5954cc1fc7b33b7c03e34d20cb8c8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f0f729bdffb08af32e0f54521b81b8a9e0321f16 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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