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CVE PROGRAM SOURCE RECORDUnscored

CVE-2023-53654

octeontx2-af: Add validation before accessing cgx and lmac

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Add validation before accessing cgx and lmac with the addition of new MAC blocks like CN10K RPM and CN10KB RPM_USX, LMACs are noncontiguous and CGX blocks are also noncontiguous. But during RVU driver initialization, the driver is assuming they are contiguous and trying to access cgx or lmac with their id which is resulting in kernel panic. This patch fixes the issue by adding proper checks. [ 23.219150] pc : cgx_lmac_read+0x38/0x70 [ 23.219154] lr : rvu_program_channels+0x3f0/0x498 [ 23.223852] sp : ffff000100d6fc80 [ 23.227158] x29: ffff000100d6fc80 x28: ffff00010009f880 x27: 000000000000005a [ 23.234288] x26: ffff000102586768 x25: 0000000000002500 x24: fffffffffff0f000

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

  • 91c6945ea1f9059fea886630d0fd8070740e2aaf to < e425e2ba933618ee5ec8e4f3eb341efeb6c9ddefaffected
  • 91c6945ea1f9059fea886630d0fd8070740e2aaf to < a5485a943193e55c79150382e6461e8ea759e96eaffected
  • 91c6945ea1f9059fea886630d0fd8070740e2aaf to < b04872e15f3df62cb2fd530950f769626e1ef489affected
  • 91c6945ea1f9059fea886630d0fd8070740e2aaf to < 79ebb53772c95d3a6ae51b3c65f9985fdd430df6affected

Linux Linux

Default version status: affected

  • 5.12affected
  • 0 to < 5.12unaffected
  • 5.15.121 to ≤ 5.15.*unaffected
  • 6.1.39 to ≤ 6.1.*unaffected
  • 6.4.4 to ≤ 6.4.*unaffected
  • 6.5 to ≤ *unaffected

References