media: edia: dvbdev: fix a use-after-free
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.19.311, 5.10.214, 5.15.153, 5.4.273, 6.1.83, 6.6.23, 6.7.11, 6.8.2
- CVEs
- CVE-2024-27043
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 08:06 UTC · Revision 1
Source evidence
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.
osv:CVE-2024-27043
Kernel
Fixed versions: 4.19.311, 5.4.273, 5.10.214, 5.15.153, 6.1.83, 6.6.23, 6.7.11, 6.8.2
Complete source record
{
"id": "bb2a13a1b24c617842f08a08a81ed4f9c4f84f311e5e6c8857044daf06868b86",
"url": "https://osv.dev/vulnerability/CVE-2024-27043",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "media: edia: dvbdev: fix a use-after-free",
"summary": "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.",
"evidence": "osv:CVE-2024-27043",
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"modified": "2026-10-28T02:30:27.089405277Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/0d3fe80b6d175c220b3e252efc6c6777e700e98e",
"https://git.kernel.org/stable/c/35674111a043b0482a9bc69da8850a83f465b07d",
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"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://lists.debian.org/debian-lts-announce/2024/06/msg00017.html",
"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27043.json",
"https://nvd.nist.gov/vuln/detail/CVE-2024-27043",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
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"source_id": "core-osv",
"document_id": 493626,
"published_at": "2024-05-01T12:54:11.197+00:00"
}