Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected dd54b48db0c822ae7b520bc80751f0a0a173ef75 before 29467edc23818dc5a33042ffb4920b49b090e63d; affected d1e73fb19a4c872d7a399ad3c66e8ca30e0875ec before 11e8ecc5b86037fec43d07b1c162e233e131b1d9; affected a44770fed86515eedb5a7c00b787f847ebb134a5 before 6693b172f008846811f48a099f33effc26068e1e; affected 668b3074aa14829e2ac2759799537a93b60fef86 before 000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1; affected ff91059932401894e6c86341915615c5eb0eca48 before b81e1c5a3c70398cf76631ede63a03616ed1ba3c; affected ff91059932401894e6c86341915615c5eb0eca48 before 98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d; affected f7990498b05ac41f7d6a190dc0418ef1d21bf058; affected 6af057ccdd8e7619960aca1f0428339f213b31cd; affected 5.10.215 before 5.10.219; affected 5.15.154 before 5.15.161; affected 6.1.85 before 6.1.93; affected 6.6.26 before 6.6.33; affected 5.4.274 before 5.5; affected 6.8.5 before 6.9 |
| Linux / Linux | affected 6.9; unaffected 0 before 6.9; unaffected 5.10.219 through 5.10.*; unaffected 5.15.161 through 5.15.*; unaffected 6.1.93 through 6.1.*; unaffected 6.6.33 through 6.6.*; unaffected 6.9.4 through 6.9.*; unaffected 6.10 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63d
- https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9
- https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1e
- https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1
- https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3c
- https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63d
- https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9
- https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1e
- https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1
- https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3c
- https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d
No English description supplied.