Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: can: bcm: extend bcm_tx_lock usage for data and timer updates Stage new CAN frame content for an existing tx op into a kmalloc()'d buffer and validate it there, mirroring the approach already used in bcm_rx_setup(). Only copy the validated data into op->frames while holding op->bcm_tx_lock, so bcm_can_tx() and bcm_tx_timeout_handler() can no longer observe a partially updated or unvalidated frame. Add a missing error path for memcpy_from_msg() when copying CAN frame data from userspace. Also move the kt_ival1/kt_ival2/ival1/ival2 updates in bcm_tx_setup() under op->bcm_tx_lock, and read kt_ival1/kt_ival2/count under the same lock in bcm_tx_set_expiry() and bcm_tx_timeout_handler(), closing the torn 64-bit ktime_t read on 32-bit platforms.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7595de7bc56e0e52b74e56c90f7e247bf626d628 before a538b072ee074c9b41b9d9c15a6861a963e30755; affected fbd8fdc2b218e979cfe422b139b8f74c12419d1f before 63422347b4c782f429748b2a09cd3cf3b77e6abd; affected 2a437b86ac5a9893c902f30ef66815bf13587bf6 before 37917e432e50b7de2b64230974380132a30f7270; affected 76c84c3728178b2d38d5604e399dfe8b0752645e before 52f06e7603780de100233713ddaf971d422e10ef; affected cc55dd28c20a6611e30596019b3b2f636819a4c0 before 972fd66bb08fdef1090abe43196ca8da07216d13; affected c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7 before bd46f55dec608daa44b45dcf3328517630ad8e40; affected c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7 before 337f966c00662d81ad82cf5a4bbb150b2e32c0d4; affected c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7 before 12ce799f7ab1e05bd8fbf79e46f403bfe5597ebc; affected 8f1c022541bf5a923c8d6fa483112c15250f30a4; affected c4e8a172501e677ebd8ea9d9161d97dc4df56fbd; affected 5.10.238 before 5.10.265; affected 5.15.185 before 5.15.216; affected 6.1.141 before 6.1.183; affected 6.6.93 before 6.6.148; affected 6.12.31 before 6.12.101; affected 5.4.294 before 5.5; affected 6.14.9 before 6.15 |
| Linux / Linux | affected 6.15; unaffected 0 before 6.15; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.148 through 6.6.*; unaffected 6.12.101 through 6.12.*; unaffected 6.18.42 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a538b072ee074c9b41b9d9c15a6861a963e30755
- https://git.kernel.org/stable/c/63422347b4c782f429748b2a09cd3cf3b77e6abd
- https://git.kernel.org/stable/c/37917e432e50b7de2b64230974380132a30f7270
- https://git.kernel.org/stable/c/52f06e7603780de100233713ddaf971d422e10ef
- https://git.kernel.org/stable/c/972fd66bb08fdef1090abe43196ca8da07216d13
- https://git.kernel.org/stable/c/bd46f55dec608daa44b45dcf3328517630ad8e40
- https://git.kernel.org/stable/c/337f966c00662d81ad82cf5a4bbb150b2e32c0d4
- https://git.kernel.org/stable/c/12ce799f7ab1e05bd8fbf79e46f403bfe5597ebc
ADP enrichment
No English description supplied.
No references supplied.