nfc: llcp: fix slab-out-of-bounds reads when logging service names

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98576
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-18 16:17:09 UTC
Updated2026-10-19 10:19:16 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix slab-out-of-bounds reads when logging service names nfc_llcp_wks_sap() and nfc_llcp_build_sdreq_tlv() pass non-null- terminated strings to pr_debug() using the %s format specifier. The buffers are allocated via kmemdup() or come from netlink attributes and are not guaranteed to be null-terminated, causing __dynamic_pr_debug() to read beyond the allocated region: KASAN: slab-out-of-bounds Read in __dynamic_pr_debug Fix both call sites by using %.*s with the explicit length to limit the output to the actual length of the string.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d9b8d8e19b073096d3609bbd60f82148d128b555 75f7c5a42fa1483f5912279a749417c284ad708f git Not specified
CNA Linux Linux affected d9b8d8e19b073096d3609bbd60f82148d128b555 6d4ca872830e46fcca9c086bf19fa9bd2faf09d2 git Not specified
CNA Linux Linux affected d9b8d8e19b073096d3609bbd60f82148d128b555 a143f7835faa4fe0178448289feea4f84eeee8d6 git Not specified
CNA Linux Linux affected d9b8d8e19b073096d3609bbd60f82148d128b555 75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b git Not specified
CNA Linux Linux affected d9b8d8e19b073096d3609bbd60f82148d128b555 8afb6c194f5781798d3ab3edf243cf5a24a9d1f9 git Not specified
CNA Linux Linux affected d9b8d8e19b073096d3609bbd60f82148d128b555 8978dff632519712d1fa432991e1f2e857f90239 git Not specified
CNA Linux Linux affected d9b8d8e19b073096d3609bbd60f82148d128b555 4262b12277a3e056c95fc49e9c4d7bd97035d16c git Not specified
CNA Linux Linux affected d9b8d8e19b073096d3609bbd60f82148d128b555 7dcf371a35632f035baf77bcf2c129165f772ce4 git Not specified
CNA Linux Linux affected 3.10 Not specified
CNA Linux Linux unaffected 3.10 semver Not specified
CNA Linux Linux unaffected 5.10.271 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.222 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.189 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.158 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.112 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.55 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.9 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/6d4ca872830e46fcca9c086bf19fa9bd2faf09d2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a143f7835faa4fe0178448289feea4f84eeee8d6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7dcf371a35632f035baf77bcf2c129165f772ce4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/75f7c5a42fa1483f5912279a749417c284ad708f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4262b12277a3e056c95fc49e9c4d7bd97035d16c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8afb6c194f5781798d3ab3edf243cf5a24a9d1f9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8978dff632519712d1fa432991e1f2e857f90239 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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