CVE-2020-36791
Published: May 7, 2025
Modified: May 11, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: net_sched: keep alloc_hash updated after hash allocation In commit 599be01ee567 ("net_sched: fix an OOB access in cls_tcindex") I moved cp->hash calculation before the first tcindex_alloc_perfect_hash(), but cp->alloc_hash is left untouched. This difference could lead to another out of bound access. cp->alloc_hash should always be the size allocated, we should update it after this tcindex_alloc_perfect_hash().
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 73c29d2f6f8ae731b1e09051b69ed3ba2319482b - < d6cdc5bb19b595486fb2e6661e5138d73a57f454affected b974ac51f5834a729de252fc5c1c9de9efd79b45 - < c4453d2833671e3a9f6bd52f0f581056c3736386affected 6cb448ee493c8a514c9afa0c346f3f5b3227de85 - < 9f8b6c44be178c2498a00b270872a6e30e7c8266affected 478c4b2ffd44e5186c7e22ae7c38a86a5b9cfde5 - < 557d015ffb27b672e24e6ad141fd887783871dc2affected dd8142a6fa5270783d415292ec8169f4ea2a5468 - < d23faf32e577922b6da20bf3740625c1105381bf+2 more versions |
Linux | Linux | affected 4.4.214 - < 4.4.218affected 4.9.214 - < 4.9.218affected 4.14.171 - < 4.14.175affected 4.19.103 - < 4.19.114affected 5.4.19 - < 5.4.29+1 more versions |
References
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