Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-64549
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-27 21:17:07 UTC
Updated2026-07-27 21:17:07 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup() bpa10x_setup() sends the vendor command 0xfc0e and passes the response to bt_dev_info() and hci_set_fw_info() as a "%s" string starting at skb->data + 1, without checking the length: bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); hci_set_fw_info(hdev, "%s", skb->data + 1); A device that returns a one-byte response (status only) leaves skb->data + 1 past the end of the data, and the %s walk reads adjacent slab memory until it meets a NUL. The same happens when the payload is not NUL-terminated within skb->len. The out-of-bounds bytes end up in the kernel log and the firmware-info debugfs file. Print the revision string with a bounded "%.*s" limited to skb->len - 1 instead. This keeps the string readable for well-behaved devices while never reading past the received data, and does not fail setup, so a device returning a short or unterminated response keeps working.

Risk And Classification

EPSS: 0.001800000 probability, percentile 0.078790000 (date 2026-07-29)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ddd68ec8f4847b460c9f580076eafe13b031a6fd 1813add71e386f77b3040e6c8dc9b7b3ff965a6c git Not specified
CNA Linux Linux affected ddd68ec8f4847b460c9f580076eafe13b031a6fd bd56c23f1f8681a2857ee924a8bd3abf87c8913b git Not specified
CNA Linux Linux affected ddd68ec8f4847b460c9f580076eafe13b031a6fd 7a64f39ebe1bacd9004a62eceadac0b122ec3cc2 git Not specified
CNA Linux Linux affected ddd68ec8f4847b460c9f580076eafe13b031a6fd f80b4afe893dffa9fabdbf80fb4d6782b24a6793 git Not specified
CNA Linux Linux affected ddd68ec8f4847b460c9f580076eafe13b031a6fd 4b4008dda1d0c6e598d7865631ad4eda63a560f0 git Not specified
CNA Linux Linux affected ddd68ec8f4847b460c9f580076eafe13b031a6fd bfc9e7be289df11e8e38c98cd78019d67fdd0bd5 git Not specified
CNA Linux Linux affected ddd68ec8f4847b460c9f580076eafe13b031a6fd a8e169d308775039200bb9c905c7ce420db6e8c5 git Not specified
CNA Linux Linux affected ddd68ec8f4847b460c9f580076eafe13b031a6fd dd068ef044128db655f48323a4acfd5907e04903 git Not specified
CNA Linux Linux affected 4.4 Not specified
CNA Linux Linux unaffected 4.4 semver Not specified
CNA Linux Linux unaffected 5.10.261 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.212 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.178 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f80b4afe893dffa9fabdbf80fb4d6782b24a6793 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a8e169d308775039200bb9c905c7ce420db6e8c5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4b4008dda1d0c6e598d7865631ad4eda63a560f0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7a64f39ebe1bacd9004a62eceadac0b122ec3cc2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1813add71e386f77b3040e6c8dc9b7b3ff965a6c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dd068ef044128db655f48323a4acfd5907e04903 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/bd56c23f1f8681a2857ee924a8bd3abf87c8913b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/bfc9e7be289df11e8e38c98cd78019d67fdd0bd5 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

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report