CVE-2024-38662
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…
Does this matter?
Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.22% probability · 13th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1Mailing List, Patch
- https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9Mailing List, Patch
- https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63dMailing List, Patch
- https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1eMailing List, Patch
- https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26dMailing List, Patch
- https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3cMailing List, Patch
- https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1Mailing List, Patch
- https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9Mailing List, Patch
- https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63dMailing List, Patch
- https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1eMailing List, Patch
- https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26dMailing List, Patch
- https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3cMailing List, Patch
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.