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CVE-2026-98579

Unknown

Last modified

CVE-2026-98579 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure nfc_genl_llc_sdreq() builds a list of TLV nodes while walking nested netlink attrs, but 3 error paths (nested-attr parse failure, TLV alloc ENOMEM, nfc_llcp_send_snl_sdreq() failure) all skip freeing what was already queued. Route them through a new free_list label, mirroring the SDRES path in the same file which already does this. Harmless on the success path too -- send_snl_sdreq() drains the list as it moves nodes, so it's already empty by the time free_list runs..

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure nfc_genl_llc_sdreq() builds a list of TLV nodes while walking nested netlink attrs, but 3 error paths (nested-attr parse failure, TLV alloc ENOMEM, nfc_llcp_send_snl_sdreq() failure) all skip freeing what was already queued. Route them through a new free_list label, mirroring the SDRES path in the same file which already does this. Harmless on the success path too -- send_snl_sdreq() drains the list as it moves nodes, so it's already empty by the time free_list runs.

Affected Software

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

VendorProductVersions
LinuxLinux>= d9b8d8e19b073096d3609bbd60f82148d128b555, < 5b1eca82085134bd92cd3810b0ef003c91e3f668; >= d9b8d8e19b073096d3609bbd60f82148d128b555, < d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02; >= d9b8d8e19b073096d3609bbd60f82148d128b555, < 755bfc409748d8f3df64eb0eb26926270de3dd77; >= d9b8d8e19b073096d3609bbd60f82148d128b555, < e43ec0191c1630f41e7043ac729ea6f1b8044a7f; >= d9b8d8e19b073096d3609bbd60f82148d128b555, < 08d2c069239ab425fdd333784a6a3b3e034e4aa0; >= d9b8d8e19b073096d3609bbd60f82148d128b555, < cbde7f5d326172d6dbb55cca0df42fa7e1ed8115; >= d9b8d8e19b073096d3609bbd60f82148d128b555, < 0b01a946b0f234f5badd25968610b585a4895f08; >= d9b8d8e19b073096d3609bbd60f82148d128b555, < 66f4300206b82b0b143ef0d9be90cd8d29f23a47
LinuxLinux3.10

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98579?
In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure nfc_genl_llc_sdreq() builds a list of TLV nodes while walking nested netlink attrs, but 3 error paths (nested-attr parse failure, TLV alloc ENOMEM, nfc_llcp_send_snl_sdreq() failure) all skip freeing what was already queued. Route them through a new free_list label, mirroring the SDRES path in the same file which already does this. Harmless on the success path too -- send_snl_sdreq() drains the list as it moves nodes, so it's already empty by the time free_list runs.
How severe is CVE-2026-98579?
Severity scoring for CVE-2026-98579 is pending analysis.
How do I fix CVE-2026-98579?
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