CVE-2024-49891: scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths
First published: Mon Oct 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths When the HBA is undergoing a reset or is handling an errata event, NULL ptr dereference crashes may occur in routines such as lpfc_sli_flush_io_rings(), lpfc_dev_loss_tmo_callbk(), or lpfc_abort_handler(). Add NULL ptr checks before dereferencing hdwq pointers that may have been freed due to operations colliding with a reset or errata event handler.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/stable/c/5873aa7f814754085d418848b2089ef406a02dd0
- https://git.kernel.org/stable/c/232a138bd843d48cb2368f604646d990db7640f3
- https://git.kernel.org/stable/c/99a801e2fca39a6f31e543fc3383058a8955896f
- https://git.kernel.org/stable/c/fd665c8dbdb19548965b0ae80c490de00e906366
- https://git.kernel.org/stable/c/2be1d4f11944cd6283cb97268b3e17c4424945ca
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49891
- https://nvd.nist.gov/vuln/detail/CVE-2024-49891
- https://launchpad.net/bugs/cve/CVE-2024-49891
- https://security-tracker.debian.org/tracker/CVE-2024-49891
- https://ubuntu.com/security/CVE-2024-49891
- https://git.kernel.org/linus/2be1d4f11944cd6283cb97268b3e17c4424945ca
Frequently Asked Questions
What is the severity of CVE-2024-49891?
CVE-2024-49891 has been classified as having a high severity due to the potential for system crashes.
How do I fix CVE-2024-49891?
To fix CVE-2024-49891, update the Linux kernel to version 6.10.14 or to any version between 6.11 and 6.11.3.
What systems are affected by CVE-2024-49891?
CVE-2024-49891 affects Linux kernel versions up to 6.10.14 and versions between 6.11 and 6.11.3.
What type of vulnerability is CVE-2024-49891?
CVE-2024-49891 is a NULL pointer dereference vulnerability that can cause system crashes.
When was CVE-2024-49891 disclosed?
The exact disclosure date of CVE-2024-49891 is not provided, but it pertains to a recent vulnerability resolved in the Linux kernel.
- agent/title
- agent/type
- agent/first-publish-date
- agent/author
- agent/weakness
- agent/remedy
- agent/severity
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/usn-cve
- source/Ubuntu
- collector/launchpad-cve
- source/Launchpad
- collector/security-tracker-debian
- source/Debian
- agent/source
- agent/references
- agent/softwarecombine
- agent/tags
- agent/description
- agent/event
- vendor/linux
- canonical/linux kernel
- version/linux kernel/6.11
- package-manager/debian