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CVE-2026-89877

HIGHCVSS 8.4/10

Last modified

CVE-2026-89877 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: media: saa7164: fix cleanup on resource allocation failure saa7164_dev_setup() adds the device to the global saa7164_devlist before requesting the PCI BAR memory regions. If get_resources() fails, saa7164_dev_setup() decrements the device count and returns an error, but leaves the device on saa7164_devlist. The probe error path then frees the device, leaving a dangling entry on the global list. Reuse the existing MMIO mapping error path to remove the device from saa7164_devlist and decrement the device count before returning. Also release BAR0 if it was successfully requested but the BAR2 request fails..

Description

In the Linux kernel, the following vulnerability has been resolved: media: saa7164: fix cleanup on resource allocation failure saa7164_dev_setup() adds the device to the global saa7164_devlist before requesting the PCI BAR memory regions. If get_resources() fails, saa7164_dev_setup() decrements the device count and returns an error, but leaves the device on saa7164_devlist. The probe error path then frees the device, leaving a dangling entry on the global list. Reuse the existing MMIO mapping error path to remove the device from saa7164_devlist and decrement the device count before returning. Also release BAR0 if it was successfully requested but the BAR2 request fails.

Metrics

CVSS 3.1
8.4/10

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

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 443c1228d50518f3c550e1fef490a2c9d9246ce7, < daa5b32cdf7db81a07ee2a91ce092a363e7754aa; >= 443c1228d50518f3c550e1fef490a2c9d9246ce7, < 77f216f8de6221efb6f6c471bc9e598f1879825b; >= 443c1228d50518f3c550e1fef490a2c9d9246ce7, < 69259c627009bf7621010ae9e997dad2dad3339c; >= 443c1228d50518f3c550e1fef490a2c9d9246ce7, < 4d2048466af9e2c960c5be6dcd317e3b657d268b; >= 443c1228d50518f3c550e1fef490a2c9d9246ce7, < fc65623524b5bf23baddc6ae688d954fba0d5de2; >= 443c1228d50518f3c550e1fef490a2c9d9246ce7, < 28e84c6e2e6753ed238ea097b2842a32a6a6879b
LinuxLinux2.6.32

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-89877?
In the Linux kernel, the following vulnerability has been resolved: media: saa7164: fix cleanup on resource allocation failure saa7164_dev_setup() adds the device to the global saa7164_devlist before requesting the PCI BAR memory regions. If get_resources() fails, saa7164_dev_setup() decrements the device count and returns an error, but leaves the device on saa7164_devlist. The probe error path then frees the device, leaving a dangling entry on the global list. Reuse the existing MMIO mapping error path to remove the device from saa7164_devlist and decrement the device count before returning. Also release BAR0 if it was successfully requested but the BAR2 request fails.
How severe is CVE-2026-89877?
CVE-2026-89877 has a CVSS score of 8.4/10 (HIGH severity).
How do I fix CVE-2026-89877?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST