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CVE-2024-38662 In the Linux kernel, the following vulnerability has been resolved: bpf: Allow delete from sockmap/sockhash only if…
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Allow delete from sockmap/sockhash only if update is allowed We have seen an influx of syzkaller reports where a BPF program attached to a tracepoint triggers a locking rule violation by performing a map_delete on a sockmap/sockhash. We don't intend to support this artificial use scenario. Extend the existing verifier allowed-program-type check for updating sockmap/sockhash to also cover deleting from a map. From now on only BPF programs which were previously allowed to update sockmap/sockhash can delete from these map types.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 6.10 | earliest → < 6.10 | 6.10 |
| Linux | 6.9 | 6.9.4 |
| Linux 6.6 | earliest → < 6.6.33 | 6.6.33 |
| Linux 6.1 | earliest → < 6.1.93 | 6.1.93 |
| Linux 5.15 | earliest → < 5.15.161 | 5.15.161 |
| Linux 5.10 | earliest → < 5.10.219 | 5.10.219 |
| RUGGEDCOM RST2428P 3.1 | earliest → < 3.1 | 3.1 |
| SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family | Versions not published | |
| SCALANCE XCM-/XRM-/XCH-/XRH-300 family 3.1 | earliest → < 3.1 | 3.1 |
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| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 | earliest → < 1.1.1 | 1.1.1 |
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