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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-23362

can: bcm: fix locking for bcm_op runtime updates

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

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

  • 7595de7bc56e0e52b74e56c90f7e247bf626d628 to < 0904037e713f787d1376e1d349c3bdf6c3105881affected
  • fbd8fdc2b218e979cfe422b139b8f74c12419d1f to < c85b96eaf766d8f066b1139a17a51efa2f6627efaffected
  • 2a437b86ac5a9893c902f30ef66815bf13587bf6 to < 800f26f11ae37b17f58e0001f28a47dd75c26557affected
  • 76c84c3728178b2d38d5604e399dfe8b0752645e to < 70e951afad4c025261fe3c952d2b07237e320a01affected
  • cc55dd28c20a6611e30596019b3b2f636819a4c0 to < 8bcf2d847adb82b2c617456f6da17ac5e6c75285affected
  • c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7 to < 8215ba7bc99e84e66fd6938874ec4330a9d96518affected
  • c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7 to < f0c349b2c21b220af5ba19f29b885e222958d796affected
  • c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7 to < c35636e91e392e1540949bbc67932167cb48bc3aaffected
  • 8f1c022541bf5a923c8d6fa483112c15250f30a4affected
  • c4e8a172501e677ebd8ea9d9161d97dc4df56fbdaffected
  • 5.10.238 to < 5.10.253affected
  • 5.15.185 to < 5.15.203affected
  • 6.1.141 to < 6.1.167affected
  • 6.6.93 to < 6.6.130affected
  • 6.12.31 to < 6.12.77affected
  • 5.4.294 to < 5.5affected
  • 6.14.9 to < 6.15affected

Linux Linux

Default version status: affected

  • 6.15affected
  • 0 to < 6.15unaffected
  • 5.10.253 to ≤ 5.10.*unaffected
  • 5.15.203 to ≤ 5.15.*unaffected
  • 6.1.167 to ≤ 6.1.*unaffected
  • 6.6.130 to ≤ 6.6.*unaffected
  • 6.12.77 to ≤ 6.12.*unaffected
  • 6.18.17 to ≤ 6.18.*unaffected
  • 6.19.7 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References