In the Linux kernel, the following vulnerability has been resolved: dma-buf/dma-resv: check if the new fence is really later Previously when we added a fence to a dma_resv object we always assumed the the newer than all the existing fences. With Jason's work to add an UAPI to explicit export/import that's not necessary the case any more. So without this check we would allow userspace to force the kernel into an use after free error. Since the change is very small and defensive it's probably a good idea to backport this to stable kernels as well just in case others are using the dma_resv object in the same way.
Update Linux/Linux to c4c798fe98adceb642050819cb57cbc8f5c27870 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scandma-buf/dma-resv: check if the new fence is really later affects Linux/Linux (generic), Linux/Linux (generic). Severity is high. In the Linux kernel, the following vulnerability has been resolved: dma-buf/dma-resv: check if the new fence is really later Previously when we added a fence to a dma_resv object we always assumed the the newer than all the existing fences. With Jason's work to add an UAPI to explicit export/import that's not necessary the case any more. So without this check we would allow userspace to force the kernel into an use after free error. Since the change is very small and defensive it's probably a good idea to backport this to stable kernels as well just in case others are using the dma_resv object in the same way.
AI coding agents often install or upgrade packages automatically in generic. A high 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/Linux |
In the Linux kernel, the following vulnerability has been resolved: dma-buf/dma-resv: check if the new fence is really later Previously when we added a fence to a dma_resv object we always assumed the the newer than all the existing fences. With Jason's work to add an UAPI to explicit export/import that's not necessary the case any more. So without this check we would allow userspace to force the kernel into an use after free error. Since the change is very small and defensive it's probably a good idea to backport this to stable kernels as well just in case others are using the dma_resv object in the same way.
Update Linux/Linux to c4c798fe98adceb642050819cb57cbc8f5c27870 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scandma-buf/dma-resv: check if the new fence is really later affects Linux/Linux (generic), Linux/Linux (generic). Severity is high. In the Linux kernel, the following vulnerability has been resolved: dma-buf/dma-resv: check if the new fence is really later Previously when we added a fence to a dma_resv object we always assumed the the newer than all the existing fences. With Jason's work to add an UAPI to explicit export/import that's not necessary the case any more. So without this check we would allow userspace to force the kernel into an use after free error. Since the change is very small and defensive it's probably a good idea to backport this to stable kernels as well just in case others are using the dma_resv object in the same way.
AI coding agents often install or upgrade packages automatically in generic. A high 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/Linux |
| >=27836b641c1bf693c96c627388497b4e0f57441b <c4c798fe98adceb642050819cb57cbc8f5c27870 || >=27836b641c1bf693c96c627388497b4e0f57441b <a3f7c10a269d5b77dd5822ade822643ced3057f0 |
| c4c798fe98adceb642050819cb57cbc8f5c27870, a3f7c10a269d5b77dd5822ade822643ced3057f0 |
| Linux/Linuxgeneric | 5.0 | 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| >=27836b641c1bf693c96c627388497b4e0f57441b <c4c798fe98adceb642050819cb57cbc8f5c27870 || >=27836b641c1bf693c96c627388497b4e0f57441b <a3f7c10a269d5b77dd5822ade822643ced3057f0 |
| c4c798fe98adceb642050819cb57cbc8f5c27870, a3f7c10a269d5b77dd5822ade822643ced3057f0 |
| Linux/Linuxgeneric | 5.0 | 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