CVE-2026-23362 (GCVE-0-2026-23362)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-03-25 10:27
VLAI?
Title
can: bcm: fix locking for bcm_op runtime updates
Summary
In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix locking for bcm_op runtime updates Commit c2aba69d0c36 ("can: bcm: add locking for bcm_op runtime updates") added a locking for some variables that can be modified at runtime when updating the sending bcm_op with a new TX_SETUP command in bcm_tx_setup(). Usually the RX_SETUP only handles and filters incoming traffic with one exception: When the RX_RTR_FRAME flag is set a predefined CAN frame is sent when a specific RTR frame is received. Therefore the rx bcm_op uses bcm_can_tx() which uses the bcm_tx_lock that was only initialized in bcm_tx_setup(). Add the missing spin_lock_init() when allocating the bcm_op in bcm_rx_setup() to handle the RTR case properly.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2a437b86ac5a9893c902f30ef66815bf13587bf6 , < 800f26f11ae37b17f58e0001f28a47dd75c26557 (git)
Affected: 76c84c3728178b2d38d5604e399dfe8b0752645e , < 70e951afad4c025261fe3c952d2b07237e320a01 (git)
Affected: cc55dd28c20a6611e30596019b3b2f636819a4c0 , < 8bcf2d847adb82b2c617456f6da17ac5e6c75285 (git)
Affected: c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7 , < 8215ba7bc99e84e66fd6938874ec4330a9d96518 (git)
Affected: c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7 , < f0c349b2c21b220af5ba19f29b885e222958d796 (git)
Affected: c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7 , < c35636e91e392e1540949bbc67932167cb48bc3a (git)
Affected: 8f1c022541bf5a923c8d6fa483112c15250f30a4 (git)
Affected: 7595de7bc56e0e52b74e56c90f7e247bf626d628 (git)
Affected: fbd8fdc2b218e979cfe422b139b8f74c12419d1f (git)
Affected: c4e8a172501e677ebd8ea9d9161d97dc4df56fbd (git)
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    Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc3 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.