soc/tegra: cbb: Fix cross-fabric target timeout lookup

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Summary

CVECVE-2026-53310
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-26 20:17:24 UTC
Updated2026-07-06 20:14:15 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: soc/tegra: cbb: Fix cross-fabric target timeout lookup When a fabric receives an error interrupt, the error may have occurred on a different fabric. The target timeout lookup was using the wrong base address (cbb->regs) with offsets from a different fabric's target map, causing a kernel page fault. Unable to handle kernel paging request at virtual address ffff80000954cc00 pc : tegra234_cbb_get_tmo_slv+0xc/0x28 Call trace: tegra234_cbb_get_tmo_slv+0xc/0x28 print_err_notifier+0x6c0/0x7d0 tegra234_cbb_isr+0xe4/0x1b4 Add tegra234_cbb_get_fabric() to look up the correct fabric device using fab_id, and use its base address for accessing target timeout registers.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001540000 probability, percentile 0.049680000 (date 2026-07-04)

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 25de5c8fe0801361182b41c42f086bd089feda14 c892d0d4fe5ec05d3fdfb1616c3c0e3c12ef5abc git Not specified
CNA Linux Linux affected 25de5c8fe0801361182b41c42f086bd089feda14 8445d69a5cabd8d6cb2bf0f8b798be205f53afa2 git Not specified
CNA Linux Linux affected 25de5c8fe0801361182b41c42f086bd089feda14 a5f51b04cbb3ae0f9cb2c4488952b775ebb0ccbf git Not specified
CNA Linux Linux affected 6.17 Not specified
CNA Linux Linux unaffected 6.17 semver Not specified
CNA Linux Linux unaffected 6.18.33 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.10 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c892d0d4fe5ec05d3fdfb1616c3c0e3c12ef5abc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/8445d69a5cabd8d6cb2bf0f8b798be205f53afa2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a5f51b04cbb3ae0f9cb2c4488952b775ebb0ccbf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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