4.7

CVE-2024-47668

lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()

In the Linux kernel, the following vulnerability has been resolved:

lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()

If we need to increase the tree depth, allocate a new node, and then
race with another thread that increased the tree depth before us, we'll
still have a preallocated node that might be used later.

If we then use that node for a new non-root node, it'll still have a
pointer to the old root instead of being zeroed - fix this by zeroing it
in the cmpxchg failure path.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.4.284
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.226
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.167
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.110
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.51
Linux ≫ Linux Kernel Version >= 6.7 < 6.10.10
Linux ≫ Linux Kernel Version6.11 Updaterc1
Linux ≫ Linux Kernel Version6.11 Updaterc2
Linux ≫ Linux Kernel Version6.11 Updaterc3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.056
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

https://git.kernel.org/stable/c/0f078f8ca93b28a34e20bd050f12cd4efeee7c0f
Patch
https://git.kernel.org/stable/c/0f27f4f445390cb7f73d4209cb2bf32834dc53da
Patch
https://git.kernel.org/stable/c/99418ec776a39609f50934720419e0b464ca2283
Patch
https://git.kernel.org/stable/c/ad5ee9feebc2eb8cfc76ed74a2d6e55343b0e169
Patch
https://git.kernel.org/stable/c/b2f11c6f3e1fc60742673b8675c95b78447f3dae
Patch
https://git.kernel.org/stable/c/d942e855324a60107025c116245095632476613e
Patch
https://git.kernel.org/stable/c/ebeff038744c498a036e7a92eb8e433ae0a386d7
Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html