Description
In the Linux kernel, the following vulnerability has been resolved: media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer() In dw2102_i2c_transfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach dw2102_i2c_transfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash. Similar commit: commit 950e252cb469 ("[media] dw2102: limit messages to buffer size")
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
7fd4828f6cc5bd4339ff58e372ccb5f528548b30 to < 77cbd42d29de9ffc93d5529bab8813cde53af14caffected7fd4828f6cc5bd4339ff58e372ccb5f528548b30 to < ecbe6d011b95c7da59f014f8d26cb7245ed1e11eaffected7fd4828f6cc5bd4339ff58e372ccb5f528548b30 to < beb9550494e7349f92b9eaa283256a5ad9b1c9beaffected7fd4828f6cc5bd4339ff58e372ccb5f528548b30 to < 97fdbdb750342cbc204befde976872fedb406ee6affected7fd4828f6cc5bd4339ff58e372ccb5f528548b30 to < 903566208ae6bb9c0e7e54355ce75bf6cf72485daffected7fd4828f6cc5bd4339ff58e372ccb5f528548b30 to < 08dfcbd03b2b7f918c4f87c6ff637054e510df74affected7fd4828f6cc5bd4339ff58e372ccb5f528548b30 to < fb28afab113a82b89ffec48c8155ec05b4f8cb5eaffected7fd4828f6cc5bd4339ff58e372ccb5f528548b30 to < 5ae544d94abc8ff77b1b9bf8774def3fa5689b5baffected
Linux Linux
Default version status: affected
2.6.27affected0 to < 2.6.27unaffected4.14.326 to ≤ 4.14.*unaffected4.19.295 to ≤ 4.19.*unaffected5.4.257 to ≤ 5.4.*unaffected5.10.197 to ≤ 5.10.*unaffected5.15.133 to ≤ 5.15.*unaffected6.1.55 to ≤ 6.1.*unaffected6.5.5 to ≤ 6.5.*unaffected6.6 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/77cbd42d29de9ffc93d5529bab8813cde53af14c ↗
- https://git.kernel.org/stable/c/ecbe6d011b95c7da59f014f8d26cb7245ed1e11e ↗
- https://git.kernel.org/stable/c/beb9550494e7349f92b9eaa283256a5ad9b1c9be ↗
- https://git.kernel.org/stable/c/97fdbdb750342cbc204befde976872fedb406ee6 ↗
- https://git.kernel.org/stable/c/903566208ae6bb9c0e7e54355ce75bf6cf72485d ↗
- https://git.kernel.org/stable/c/08dfcbd03b2b7f918c4f87c6ff637054e510df74 ↗
- https://git.kernel.org/stable/c/fb28afab113a82b89ffec48c8155ec05b4f8cb5e ↗
- https://git.kernel.org/stable/c/5ae544d94abc8ff77b1b9bf8774def3fa5689b5b ↗