CVE-2026-53002

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: remove sprintf usage Replace it with scnprintf, the buffer sizes are expected to be large enough to hold the result, no need for snprintf+overflow check. Increase buffer size in mangle_content_len() while at it. BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270 Write of size 1 at addr [..] vsnprintf+0xea5/0x1270 sprintf+0xb1/0xe0 mangle_content_len+0x1ac/0x280 nf_nat_sdp_session+0x1cc/0x240 process_sdp+0x8f8/0xb80 process_invite_request+0x108/0x2b0 process_sip_msg+0x5da/0xf50 sip_help_tcp+0x45e/0x780 nf_confirm+0x34d/0x990 [..]

Impact & exploitability

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

Affected products we track (2)

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1ePatch
• https://git.kernel.org/stable/c/2f793ba78470a99f40389b7dc60a81d9f5ad3956Patch
• https://git.kernel.org/stable/c/6bbf829b4c1b44c941c47dd0d710f1393258f3d5Patch
• https://git.kernel.org/stable/c/6e7066bdb481a87fe88c4fa563e348c03b2d373dPatch
• https://git.kernel.org/stable/c/8e3be0d12615a173fe260cd42753ca7a001acbf2Patch
• https://git.kernel.org/stable/c/a8e0a32a23d3f34862af3b4da792ecb3a891a9a3Patch
• https://git.kernel.org/stable/c/ab64e61c9323fa6de21bd20da1ddb29a0fb65d34Patch
• https://git.kernel.org/stable/c/c08ff52e44945e6ef4ce0790f49ea761b060c45bPatch