Security readout for executives and security teams
Plain-English summary
This is a Linux kernel memory leak in the pxa2xx-flash MTD map driver. The leak occurs when driver probing hits a remapping error. The public record does not provide CVSS, CWE, impact rating, or evidence of exploitation, so urgency depends on whether affected kernels and this driver are present.
Executive priority
Treat as a targeted kernel hygiene item, not an emergency, unless you operate affected embedded Linux platforms. Prioritize confirmation and normal kernel patching because impact and exploitability are not established in the supplied record.
Technical view
The resolved kernel issue frees the driver private 'info' allocation on an ioremap/remapping failure path in pxa2xx-flash probe. The source bundle lists Linux kernel versions as affected and references stable kernel commits that correct the cleanup path. No exploit primitive, privilege impact, or crash outcome is documented.
Likely exposure
Likely limited to Linux deployments running affected kernel versions with the pxa2xx-flash MTD map driver built, loaded, or relevant to their hardware. General-purpose systems without this driver path are less likely to be exposed, but the bundle does not prove they are unaffected.
Exploitation context
CISA KEV status is false, and the supplied sources provide no public evidence of active exploitation. The documented condition is an error-handling memory leak during probe, not a described remote attack path.
Researcher notes
Evidence is narrow: a kernel commit message describes freeing 'info' on remapping error. There is no CVSS, CWE, reproducer, exploit status, or detailed impact analysis in the bundle. Avoid overstating reach beyond affected Linux kernels and the pxa2xx-flash driver path.
Mitigation direction
- Update to a vendor or upstream kernel containing the referenced stable fix.
- Check distribution advisories for the fixed package version for your kernel stream.
- If the driver is unnecessary, consider disabling it after platform testing.
- Track embedded and appliance kernels separately from general server patching.
Validation and detection
- Inventory Linux kernel versions against the affected versions listed in the CVE record.
- Confirm whether the pxa2xx-flash MTD map driver is built or loaded.
- Verify whether one of the referenced stable commits is present in the kernel source package.
- Review vendor kernel changelogs for CVE-2022-50324 or the pxa2xx-flash leak fix.
Public sources used
- CVE Program
- CVE List V5
- Linux stable commit cb3f35f44887
- Linux stable commit e2324a0912ad
- Linux stable commit 6fa9550ef3e1
- Linux stable commit cf9c4c25caad
- Linux stable commit 1d0c2b762dad
- Linux stable commit f35981083cb3
- Linux stable commit 932baf593eb6
- Linux stable commit a1b061cafdbc
- Linux stable commit 2399401feee2
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2022-50324 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/cb3f35f44887a8486737fe88d58050f1df290758CVE reference
- https://git.kernel.org/stable/c/e2324a0912ad26a0ea5baaf81aed0ca880804158CVE reference
- https://git.kernel.org/stable/c/6fa9550ef3e13d7e9b2d4db6dd57292ccd072a90CVE reference
- https://git.kernel.org/stable/c/cf9c4c25caad05c6b492cbba739a467511814279CVE reference
- https://git.kernel.org/stable/c/1d0c2b762dad2b8dd166e17c0e90b88b86a3284fCVE reference
- https://git.kernel.org/stable/c/f35981083cb3fc1ba6427c1543152c5e3f59d104CVE reference
- https://git.kernel.org/stable/c/932baf593eb63dff40e40d7674f076fb7932cd5bCVE reference
- https://git.kernel.org/stable/c/a1b061cafdbcb1ff259731f30e2bdc1de64dcabaCVE reference
- https://git.kernel.org/stable/c/2399401feee27c639addc5b7e6ba519d3ca341bfCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.