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CVE-2026-17523 (GCVE-0-2026-17523)

Vulnerability from cvelistv5 – Published: 2026-07-27 08:58 – Updated: 2026-09-10 05:50
VLAI
Title
can: bcm: switch timer to HRTIMER_MODE_SOFT and remove hrtimer_tasklet
Summary
In the Linux kernel, the following vulnerability has been resolved: can: bcm: switch timer to HRTIMER_MODE_SOFT and remove hrtimer_tasklet This patch switches the timer to HRTIMER_MODE_SOFT, which executed the timer callback in softirq context and removes the hrtimer_tasklet.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 13:44 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 79305a826f872fe446c6fbf8450f515053ef6951 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < bf74aa86e111aa3b2fbb25db37e3a3fab71b5b68 (git)
Affected: 0 , < 4.19.226 (semver)
guessed Create a notification for this product.
Linux Linux Unaffected: 4.19.226 , ≤ 4.19.* (semver)
Unaffected: 5.4 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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