In the Linux kernel, the following vulnerability has been resolved: netfilter: reject zero shift in nft_bitwise Reject zero shift operands for nft_bitwise left and right shift expressions during initialization. The carry propagation logic computes the carry from the adjacent 32-bit word using BITS_PER_TYPE(u32) - shift. A zero shift operand turns this into a 32-bit shift, which is undefined behaviour. Reject zero shift operands in the control plane, alongside the existing check for values greater than or equal to 32, so malformed rules never reach the packet path.
Update Linux/Linux to 9baa08d6b6b096fad70049533f0d705d85fdc979 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scannetfilter: reject zero shift in nft_bitwise affects Linux/Linux (generic), Linux/Linux (generic). Severity is medium. In the Linux kernel, the following vulnerability has been resolved: netfilter: reject zero shift in nft_bitwise Reject zero shift operands for nft_bitwise left and right shift expressions during initialization. The carry propagation logic computes the carry from the adjacent 32-bit word using BITS_PER_TYPE(u32) - shift. A zero shift operand turns this into a 32-bit shift, which is undefined behaviour. Reject zero shift operands in the control plane, alongside the existing check for values greater than or equal to 32, so malformed rules never reach the packet path.
AI coding agents often install or upgrade packages automatically in generic. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric |
In the Linux kernel, the following vulnerability has been resolved: netfilter: reject zero shift in nft_bitwise Reject zero shift operands for nft_bitwise left and right shift expressions during initialization. The carry propagation logic computes the carry from the adjacent 32-bit word using BITS_PER_TYPE(u32) - shift. A zero shift operand turns this into a 32-bit shift, which is undefined behaviour. Reject zero shift operands in the control plane, alongside the existing check for values greater than or equal to 32, so malformed rules never reach the packet path.
Update Linux/Linux to 9baa08d6b6b096fad70049533f0d705d85fdc979 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scannetfilter: reject zero shift in nft_bitwise affects Linux/Linux (generic), Linux/Linux (generic). Severity is medium. In the Linux kernel, the following vulnerability has been resolved: netfilter: reject zero shift in nft_bitwise Reject zero shift operands for nft_bitwise left and right shift expressions during initialization. The carry propagation logic computes the carry from the adjacent 32-bit word using BITS_PER_TYPE(u32) - shift. A zero shift operand turns this into a 32-bit shift, which is undefined behaviour. Reject zero shift operands in the control plane, alongside the existing check for values greater than or equal to 32, so malformed rules never reach the packet path.
AI coding agents often install or upgrade packages automatically in generic. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric |
| >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <9baa08d6b6b096fad70049533f0d705d85fdc979 || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <4fccea585631621c975883911a08d15b6671f7dc || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <9ad26c272405f53834871cc2e46b9b5393a666c3 || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <bffef0acec9c3b837a785248a893137fb7f26c95 || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <ca24f1243ad1a4d12d6a23876bbbe3ed02099853 || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <6f820139d16a4c9865a145d4a9cf9c92cc632c14 || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <f370205974f171a5868c13ff30d7642fed46e47b || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <fe11e5c40817b84abaa5d83bfb6586d8412bfd07 |
| 9baa08d6b6b096fad70049533f0d705d85fdc979, 4fccea585631621c975883911a08d15b6671f7dc, 9ad26c272405f53834871cc2e46b9b5393a666c3, bffef0acec9c3b837a785248a893137fb7f26c95, ca24f1243ad1a4d12d6a23876bbbe3ed02099853, 6f820139d16a4c9865a145d4a9cf9c92cc632c14, f370205974f171a5868c13ff30d7642fed46e47b, fe11e5c40817b84abaa5d83bfb6586d8412bfd07 |
| Linux/Linuxgeneric | 5.6 | Not reported |
|---|
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by CVE List V5 (cvelist).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard| >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <9baa08d6b6b096fad70049533f0d705d85fdc979 || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <4fccea585631621c975883911a08d15b6671f7dc || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <9ad26c272405f53834871cc2e46b9b5393a666c3 || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <bffef0acec9c3b837a785248a893137fb7f26c95 || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <ca24f1243ad1a4d12d6a23876bbbe3ed02099853 || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <6f820139d16a4c9865a145d4a9cf9c92cc632c14 || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <f370205974f171a5868c13ff30d7642fed46e47b || >=567d746b55bc66d3800c9ae91d50f0c5deb2fd93 <fe11e5c40817b84abaa5d83bfb6586d8412bfd07 |
| 9baa08d6b6b096fad70049533f0d705d85fdc979, 4fccea585631621c975883911a08d15b6671f7dc, 9ad26c272405f53834871cc2e46b9b5393a666c3, bffef0acec9c3b837a785248a893137fb7f26c95, ca24f1243ad1a4d12d6a23876bbbe3ed02099853, 6f820139d16a4c9865a145d4a9cf9c92cc632c14, f370205974f171a5868c13ff30d7642fed46e47b, fe11e5c40817b84abaa5d83bfb6586d8412bfd07 |
| Linux/Linuxgeneric | 5.6 | Not reported |
|---|
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by CVE List V5 (cvelist).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard