CVE-2023-53146

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux7fd4828f6cc5bd4339ff58e372ccb5f528548b30 < 77cbd42d29de9ffc93d5529bab8813cde53af14caffected
LinuxLinux7fd4828f6cc5bd4339ff58e372ccb5f528548b30 < ecbe6d011b95c7da59f014f8d26cb7245ed1e11eaffected
LinuxLinux7fd4828f6cc5bd4339ff58e372ccb5f528548b30 < beb9550494e7349f92b9eaa283256a5ad9b1c9beaffected
LinuxLinux7fd4828f6cc5bd4339ff58e372ccb5f528548b30 < 97fdbdb750342cbc204befde976872fedb406ee6affected
LinuxLinux7fd4828f6cc5bd4339ff58e372ccb5f528548b30 < 903566208ae6bb9c0e7e54355ce75bf6cf72485daffected
LinuxLinux7fd4828f6cc5bd4339ff58e372ccb5f528548b30 < 08dfcbd03b2b7f918c4f87c6ff637054e510df74affected
LinuxLinux7fd4828f6cc5bd4339ff58e372ccb5f528548b30 < fb28afab113a82b89ffec48c8155ec05b4f8cb5eaffected
LinuxLinux7fd4828f6cc5bd4339ff58e372ccb5f528548b30 < 5ae544d94abc8ff77b1b9bf8774def3fa5689b5baffected
LinuxLinux2.6.27affected
LinuxLinux0 < 2.6.27unaffected
LinuxLinux4.14.326 <= 4.14.*unaffected
LinuxLinux4.19.295 <= 4.19.*unaffected
LinuxLinux5.4.257 <= 5.4.*unaffected
LinuxLinux5.10.197 <= 5.10.*unaffected
LinuxLinux5.15.133 <= 5.15.*unaffected
LinuxLinux6.1.55 <= 6.1.*unaffected
LinuxLinux6.5.5 <= 6.5.*unaffected
LinuxLinux6.6 <= *unaffected

Weaknesses

References