High severity7.1NVD Advisory· Published Jun 25, 2026· Updated Jul 6, 2026
CVE-2026-53149
CVE-2026-53149
Description
In the Linux kernel, the following vulnerability has been resolved:
thunderbolt: Bound root directory content to block size
__tb_property_parse_dir() does not check that content_offset + content_len fits within block_len for the root directory case. When rootdir->length equals or exceeds block_len - 2, the entry loop reads past the allocated property block.
Add a bounds check after computing content_offset and content_len to reject directories whose content extends past the block.
Affected products
21cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=4.15,<5.10.259
- cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:*
- (no CPE)
- osv-coords12 versionspkg:apk/chainguard/linux-aws-6.12pkg:apk/chainguard/linux-aws-6.18pkg:apk/chainguard/linux-azure-6.18pkg:apk/chainguard/linux-gcp-6.18pkg:apk/chainguard/linux-gcp-6.18-bootc-boot-installedpkg:apk/chainguard/linux-qemu-6.12pkg:apk/chainguard/linux-qemu-6.18pkg:apk/chainguard/linux-qemu-6.18-bootc-boot-installedpkg:apk/chainguard/linux-qemu-melangepkg:apk/chainguard/linux-vmware-6.12pkg:apk/chainguard/linux-vmware-6.18pkg:linux/kernel
< 6.12.95-r0+ 11 more
- (no CPE)range: < 6.12.95-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.12.95-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: < 6.12.95-r0
- (no CPE)range: < 6.18.38-r0
- (no CPE)range: >= 4.15.0, < 5.10.259
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/0a32040a48db8cf35de48b85d6115df5623e4964nvdPatch
- git.kernel.org/stable/c/1912be23daf4afc8d24ce916021ab68ca4c679dbnvdPatch
- git.kernel.org/stable/c/4d0b1524caadb04c10a71f3f88692c63dcb39115nvdPatch
- git.kernel.org/stable/c/5c7657d38d07268124782f03519f07c22a5814fbnvdPatch
- git.kernel.org/stable/c/60ba6217460792356a238299edd675d91d46bab4nvdPatch
- git.kernel.org/stable/c/65423079c7420e3dbf9a7aa345c243a3f5752e5dnvdPatch
- git.kernel.org/stable/c/b212bc161d8a9937b42153723a4a3f2f74fab528nvdPatch
- git.kernel.org/stable/c/cbeb68cbaa0a6f979ef428a7f2d0268c082ba166nvdPatch
News mentions
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