CVE-2025-21844

In the Linux kernel, the following vulnerability has been resolved: smb: client: Add check for next_buffer in receive_encrypted_standard() Add check for the return value of cifs_buf_get() and cifs_small_buf_get() in receive_encrypted_standard() to prevent null pointer dereference.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-25)

CWE

CWE-476

Published

2025-03-12

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b
• https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96
• https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7
• https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391
• https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd

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