CVE-2024-27043: media: edia: dvbdev: fix a use-after-free
First published: Wed May 01 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: media: edia: dvbdev: fix a use-after-free In dvb_register_device, *pdvbdev is set equal to dvbdev, which is freed in several error-handling paths. However, *pdvbdev is not set to NULL after dvbdev's deallocation, causing use-after-frees in many places, for example, in the following call chain: budget_register |-> dvb_dmxdev_init |-> dvb_register_device |-> dvb_dmxdev_release |-> dvb_unregister_device |-> dvb_remove_device |-> dvb_device_put |-> kref_put When calling dvb_unregister_device, dmxdev->dvbdev (i.e. *pdvbdev in dvb_register_device) could point to memory that had been freed in dvb_register_device. Thereafter, this pointer is transferred to kref_put and triggering a use-after-free.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.19.311 | 4.19.311 |
| redhat/kernel | <5.4.273 | 5.4.273 |
| redhat/kernel | <5.10.214 | 5.10.214 |
| redhat/kernel | <5.15.153 | 5.15.153 |
| redhat/kernel | <6.1.83 | 6.1.83 |
| redhat/kernel | <6.6.23 | 6.6.23 |
| redhat/kernel | <6.7.11 | 6.7.11 |
| redhat/kernel | <6.8.2 | 6.8.2 |
| redhat/kernel | <6.9 | 6.9 |
| >=2.6.21<4.19.311 | ||
| >=4.20<5.4.273 | ||
| >=5.5<5.10.214 | ||
| >=5.11<5.15.153 | ||
| >=5.16<6.1.83 | ||
| >=6.2<6.6.23 | ||
| >=6.7<6.7.11 | ||
| >=6.8<6.8.2 | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 | |
| Linux Linux kernel | >=2.6.21<4.19.311 | |
| Linux Linux kernel | >=4.20<5.4.273 | |
| Linux Linux kernel | >=5.5<5.10.214 | |
| Linux Linux kernel | >=5.11<5.15.153 | |
| Linux Linux kernel | >=5.16<6.1.83 | |
| Linux Linux kernel | >=6.2<6.6.23 | |
| Linux Linux kernel | >=6.7<6.7.11 | |
| Linux Linux kernel | >=6.8<6.8.2 |
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/096237039d00c839f3e3a5fe6d001bf0db45b644
- https://git.kernel.org/stable/c/0d3fe80b6d175c220b3e252efc6c6777e700e98e
- https://git.kernel.org/stable/c/35674111a043b0482a9bc69da8850a83f465b07d
- https://git.kernel.org/stable/c/437a111f79a2f5b2a5f21e27fdec6f40c8768712
- https://git.kernel.org/stable/c/779e8db7efb22316c8581d6c229636d2f5694a62
- https://git.kernel.org/stable/c/8c64f4cdf4e6cc5682c52523713af8c39c94e6d5
- https://git.kernel.org/stable/c/b7586e902128e4fb7bfbb661cb52e4215a65637b
- https://git.kernel.org/stable/c/d0f5c28333822f9baa5280d813124920720fd856
- https://git.kernel.org/stable/c/f20c3270f3ed5aa6919a87e4de9bf6c05fb57086
- https://launchpad.net/bugs/cve/CVE-2024-27043
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27043
- https://nvd.nist.gov/vuln/detail/CVE-2024-27043
- https://security-tracker.debian.org/tracker/CVE-2024-27043
- https://ubuntu.com/security/CVE-2024-27043
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://access.redhat.com/security/cve/CVE-2024-27043
- https://lore.kernel.org/linux-cve-announce/2024050113-CVE-2024-27043-f2fb@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2278446
- https://access.redhat.com/errata/RHSA-2024:10282
- https://access.redhat.com/errata/RHSA-2024:10281
- https://bugzilla.redhat.com/show_bug.cgi?id=2278445
- https://git.kernel.org/linus/8c64f4cdf4e6cc5682c52523713af8c39c94e6d5
- agent/weakness
- agent/title
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- collector/usn-cve
- source/Ubuntu
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/references
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2024-27043
- agent/software-canonical-lookup
- agent/trending
- collector/nvd-api
- source/NVD
- agent/remedy
- agent/severity
- agent/last-modified-date
- agent/softwarecombine
- agent/tags
- agent/event
- collector/security-tracker-debian
- source/Debian
- collector/nvd-cve
- package-manager/redhat
- vendor/linux
- package-manager/debian
- canonical/linux linux kernel
- version/linux linux kernel/2.6.21
- version/linux linux kernel/4.20
- version/linux linux kernel/5.5
- version/linux linux kernel/5.11
- version/linux linux kernel/5.16
- version/linux linux kernel/6.2
- version/linux linux kernel/6.7
- version/linux linux kernel/6.8