CVE-2026-52989
CVE-2026-52989: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.1
High [CVE-2026-52989] propagate nvmet_tcp_build_pdu_iovec errors to its callers
CVE-2026-52989Source published Source updated
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers Currently, when nvmet_tcp_build_pdu_iovec() detects an out-of-bounds PDU length or offset, it triggers nvmet_tcp_fatal_error(cmd->queue) and returns early. However, because the function returns void, the callers are entirely unaware that a fatal error has occurred and that the cmd->recv_msg.msg_iter was left uninitialized. Callers such as nvmet_tcp_handle_h2c_data_pdu() proceed to blindly overwrite the queue state with queue->rcv_state = NVMET_TCP_RECV_DATA Consequently, the socket receiving loop may attempt to read incoming network data into the uninitialized iterator. Fix this by shifting the error handling responsibility to the callers. This can…
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat package: kernel
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- For Red Hat Enterprise Linux, mitigation for this issue is not applicable as the product is not affected. For Red Hat In-Vehicle OS, if the NVM Express over TCP (nvmet-tcp) functionality is not required, the `nvmet_tcp` kernel module can be prevented from loading. To do this, create a file named `/etc/modprobe.d/disable-nvmet-tcp.conf` with the following content: `install nvmet_tcp /bin/true` `blacklist nvmet_tcp` After creating the file, regenerate the initramfs and reboot the system for the changes to take effect. Disabling this module may impact storage functionality if NVMe over TCP is in use.
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