CVE-2024-26813
Linux VFIO Platform NULL Pointer Dereference Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: vfio/platform: Create persistent IRQ handlers The vfio-platform SET_IRQS ioctl currently allows loopback triggering of an interrupt before a signaling eventfd has been configured by the user, which thereby allows a NULL pointer dereference. Rather than register the IRQ relative to a valid trigger, register all IRQs in a disabled state in the device open path. This allows mask operations on the IRQ to nest within the overall enable state governed by a valid eventfd signal. This decouples @masked, protected by the @locked spinlock from @trigger, protected via the @igate mutex. In doing so, it's guaranteed that changes to @trigger cannot race the IRQ handlers because the IRQ handler is synchronously disabled before modifying the trigger, and loopback triggering of the IRQ via ioctl is safe due to serialization with trigger changes via igate. For compatibility, request_irq() failures are maintained to be local to the SET_IRQS ioctl rather than a fatal error in the open device path. This allows, for example, a userspace driver with polling mode support to continue to work regardless of moving the request_irq() call site. This necessarily blocks all SET_IRQS access to the failed index.
INFO
Published Date :
April 5, 2024, 9:15 a.m.
Last Modified :
Dec. 20, 2024, 2:30 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-26813
.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-26813
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-26813
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Dec. 20, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.1 up to (excluding) 5.4.274 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.215 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.154 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.84 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.24 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.7.12 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.8 up to (excluding) 6.8.3 Changed Reference Type https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e No Types Assigned https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e Patch Changed Reference Type https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e No Types Assigned https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e Patch Changed Reference Type https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5 No Types Assigned https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5 Patch Changed Reference Type https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5 No Types Assigned https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5 Patch Changed Reference Type https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29 No Types Assigned https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29 Patch Changed Reference Type https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29 No Types Assigned https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29 Patch Changed Reference Type https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086 No Types Assigned https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086 Patch Changed Reference Type https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086 No Types Assigned https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086 Patch Changed Reference Type https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375 No Types Assigned https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375 Patch Changed Reference Type https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375 No Types Assigned https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375 Patch Changed Reference Type https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362 No Types Assigned https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362 Patch Changed Reference Type https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362 No Types Assigned https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362 Patch Changed Reference Type https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a No Types Assigned https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a Patch Changed Reference Type https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a No Types Assigned https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a Patch Changed Reference Type https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f No Types Assigned https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f Patch Changed Reference Type https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f No Types Assigned https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f Patch Changed Reference Type https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html No Types Assigned https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e Added Reference https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5 Added Reference https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29 Added Reference https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086 Added Reference https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375 Added Reference https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362 Added Reference https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a Added Reference https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 05, 2024
Action Type Old Value New Value Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 13, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5 [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 10, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a [No types assigned] -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 05, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: vfio/platform: Create persistent IRQ handlers The vfio-platform SET_IRQS ioctl currently allows loopback triggering of an interrupt before a signaling eventfd has been configured by the user, which thereby allows a NULL pointer dereference. Rather than register the IRQ relative to a valid trigger, register all IRQs in a disabled state in the device open path. This allows mask operations on the IRQ to nest within the overall enable state governed by a valid eventfd signal. This decouples @masked, protected by the @locked spinlock from @trigger, protected via the @igate mutex. In doing so, it's guaranteed that changes to @trigger cannot race the IRQ handlers because the IRQ handler is synchronously disabled before modifying the trigger, and loopback triggering of the IRQ via ioctl is safe due to serialization with trigger changes via igate. For compatibility, request_irq() failures are maintained to be local to the SET_IRQS ioctl rather than a fatal error in the open device path. This allows, for example, a userspace driver with polling mode support to continue to work regardless of moving the request_irq() call site. This necessarily blocks all SET_IRQS access to the failed index. Added Reference kernel.org https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-26813
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-26813
weaknesses.