CVE-2026-80654

In the Linux kernel, the following vulnerability has been resolved: soc: xilinx: Shutdown and free rx mailbox channel A mbox rx channel is requested using mbox_request_channel_byname() in probe. In remove callback, the rx mailbox channel is cleaned up when the rx_chan is NULL due to incorrect condition check. The mailbox channel is not shutdown and it can receive messages even after the device removal. This leads to use after free. Also the channel resources are not freed. Fix this by checking the rx_chan correctly.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/a83e77d1e52c01c50096e6e97c57d34e0590d628
https://git.kernel.org/stable/c/b0f748c563921a7918c78e6a599cefd54de7d688
https://git.kernel.org/stable/c/b5d2240c2c7bc8370e7ba54a2e1fe3919f55aee5
https://git.kernel.org/stable/c/fdee7c66c0d7b6869c36b9f9a915abf29ab5b550

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-28 08:16

Updated : 2026-08-28 08:16

NVD link : CVE-2026-80654

Mitre link : CVE-2026-80654

CVE.ORG link : CVE-2026-80654

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-80654", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df", "lessThan": "b0f748c563921a7918c78e6a599cefd54de7d688", "versionType": "git"}, {"status": "affected", "version": "ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df", "lessThan": "a83e77d1e52c01c50096e6e97c57d34e0590d628", "versionType": "git"}, {"status": "affected", "version": "ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df", "lessThan": "b5d2240c2c7bc8370e7ba54a2e1fe3919f55aee5", "versionType": "git"}, {"status": "affected", "version": "ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df", "lessThan": "fdee7c66c0d7b6869c36b9f9a915abf29ab5b550", "versionType": "git"}], "programFiles": ["drivers/soc/xilinx/zynqmp_power.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.6"}, {"status": "unaffected", "version": "0", "lessThan": "5.6", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.97", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.40", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.5", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/soc/xilinx/zynqmp_power.c"], "defaultStatus": "affected"}]}], "published": "2026-08-28T08:16:50.467", "references": [{"url": "https://git.kernel.org/stable/c/a83e77d1e52c01c50096e6e97c57d34e0590d628", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b0f748c563921a7918c78e6a599cefd54de7d688", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b5d2240c2c7bc8370e7ba54a2e1fe3919f55aee5", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fdee7c66c0d7b6869c36b9f9a915abf29ab5b550", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: xilinx: Shutdown and free rx mailbox channel\n\nA mbox rx channel is requested using mbox_request_channel_byname() in\nprobe. In remove callback, the rx mailbox channel is cleaned up when the\nrx_chan is NULL due to incorrect condition check. The mailbox channel is\nnot shutdown and it can receive messages even after the device removal.\nThis leads to use after free. Also the channel resources are not freed.\nFix this by checking the rx_chan correctly."}], "lastModified": "2026-08-28T08:16:50.467", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}