Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net/packet: clear RX owner on VNET header error Commit 61fad6816fc1 ("net/packet: tpacket_rcv: avoid a producer race condition") added rx_owner_map and made tpacket_rcv() claim a V1 or V2 ring slot before converting the virtio-net header. If the conversion fails, the drop path leaves the slot claimed. With a one-frame TPACKET_V2 ring, an unsupported UDP GSO packet leaves the only slot unavailable, so the ring also drops the next valid packet. Clear the ownership bit on this error path. TPACKET_V3 already clears its block state here.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before bb10a0084c03a94364aeec542beddc5d49b59f59; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before b8c0cb3069058c2d67b5c7c833b2833381ecffdc; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before 2daa618e7ff19eefcbda281bc4c5998c4140f9cf; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before 23cd30498891d29a69ec9b75bd92f8a0f21f1342; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before 49a48a5aaf85fe69d2dc3fb334b4854fadf44e39; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before 805edbdcb8681da5f7ee43b3c3c809f7a8c31208; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before 693209a237fc548791cf402441db8b68d1da7d38; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 before 33ff111d7ba3beb86e28938d6382bb5beabd865a; affected 2975472e042e0bbfeeabddc5023cb8c011ec5a07; affected 6fb0e4385928900ccb8697748555b3f54bba5193; affected 86137342fd4cf52882842aa8d1318b2661f08e8a; affected b06e4d3ed4044c2facf10a511d809f9aa29d960e; affected 4.14.175 before 4.15; affected 4.19.114 before 4.20; affected 5.4.29 before 5.5; affected 5.5.14 before 5.6 |
| Linux / Linux | affected 5.6; unaffected 0 before 5.6; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.54 through 6.18.*; unaffected 7.2.8 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/bb10a0084c03a94364aeec542beddc5d49b59f59
- https://git.kernel.org/stable/c/b8c0cb3069058c2d67b5c7c833b2833381ecffdc
- https://git.kernel.org/stable/c/2daa618e7ff19eefcbda281bc4c5998c4140f9cf
- https://git.kernel.org/stable/c/23cd30498891d29a69ec9b75bd92f8a0f21f1342
- https://git.kernel.org/stable/c/49a48a5aaf85fe69d2dc3fb334b4854fadf44e39
- https://git.kernel.org/stable/c/805edbdcb8681da5f7ee43b3c3c809f7a8c31208
- https://git.kernel.org/stable/c/693209a237fc548791cf402441db8b68d1da7d38
- https://git.kernel.org/stable/c/33ff111d7ba3beb86e28938d6382bb5beabd865a