cbcvebase.
CVE-2026-43226
published 2026-05-06

CVE-2026-43226: In the Linux kernel, the following vulnerability has been resolved: net/rds: No shortcut out of RDS_CONN_ERROR RDS connections carry a state…

PriorityP340high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.52%
41.5th percentile
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."

Affected

59 ranges· showing 25
VendorProductVersion rangeFixed in
linuxlinux
linuxlinux>= 5916e2c1554f3e36f770401c989c3c7fadf619ca < 9bcd7c00691a2db9745817d5ea79262a503b135c9bcd7c00691a2db9745817d5ea79262a503b135c
linuxlinux>= 5916e2c1554f3e36f770401c989c3c7fadf619ca < a179ac7be8f5a650d0068040705f4cddd6ca369ca179ac7be8f5a650d0068040705f4cddd6ca369c
linuxlinux>= 5916e2c1554f3e36f770401c989c3c7fadf619ca < 19e384a7d00d888303a8285977cdf1970c6cccd619e384a7d00d888303a8285977cdf1970c6cccd6
linuxlinux>= 5916e2c1554f3e36f770401c989c3c7fadf619ca < f0f729bdffb08af32e0f54521b81b8a9e0321f16f0f729bdffb08af32e0f54521b81b8a9e0321f16
linuxlinux>= 5916e2c1554f3e36f770401c989c3c7fadf619ca < 81248b1eb3c5954cc1fc7b33b7c03e34d20cb8c881248b1eb3c5954cc1fc7b33b7c03e34d20cb8c8
linuxlinux>= 5916e2c1554f3e36f770401c989c3c7fadf619ca < 899ef00963ce76f9fc421a7d02335fe4ead6389b899ef00963ce76f9fc421a7d02335fe4ead6389b
linuxlinux>= 5916e2c1554f3e36f770401c989c3c7fadf619ca < 9ff599a9be784a808c36765086e3db2144aa3b669ff599a9be784a808c36765086e3db2144aa3b66
linuxlinux>= 5916e2c1554f3e36f770401c989c3c7fadf619ca < ad22d24be635c6beab6a1fdd3f8b1f3c478d15daad22d24be635c6beab6a1fdd3f8b1f3c478d15da
linuxlinux_kernel
linuxlinux_kernel>= 4.8 < 5.10.2525.10.252
linuxlinux_kernel>= 5.11 < 5.15.2025.15.202
linuxlinux_kernel>= 5.16 < 6.1.1656.1.165
linuxlinux_kernel>= 6.13 < 6.18.166.18.16
linuxlinux_kernel>= 6.19 < 6.19.66.19.6
linuxlinux_kernel>= 6.2 < 6.6.1286.6.128
linuxlinux_kernel>= 6.7 < 6.12.756.12.75
ubuntulinux
ubuntulinux-aws
ubuntulinux-aws-5.15
ubuntulinux-aws-6.8
ubuntulinux-aws-fips
ubuntulinux-azure
ubuntulinux-azure-5.15
ubuntulinux-azure-6.8

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vendor_ubuntu8.8HIGH
vendor_redhat7.0MEDIUM
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