CVE-2022-49832
pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map Here is the BUG report by KASAN about null pointer dereference: BUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50 Read of size 1 at addr 0000000000000000 by task python3/2640 Call Trace: strcmp __of_find_property of_find_property pinctrl_dt_to_map kasprintf() would return NULL pointer when kmalloc() fail to allocate. So directly return ENOMEM, if kasprintf() return NULL pointer.
Timeline
ID reserved
By Linux
Published
- 18 months later
· 18 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 88% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 57291ce295c0aca738dd284c4a9c591c09ebee71 – < aaf552c5d53abe4659176e099575fe870d2e4768
- affected 57291ce295c0aca738dd284c4a9c591c09ebee71 – < b4d9f55cd38435358bc16d580612bc0d798d7b4c
- affected 57291ce295c0aca738dd284c4a9c591c09ebee71 – < a988dcd3dd9e691c5ccc3324b209688f3b5453e9
- affected 57291ce295c0aca738dd284c4a9c591c09ebee71 – < 040f726fecd88121f3b95e70369785ad452dddf9
- affected 57291ce295c0aca738dd284c4a9c591c09ebee71 – < 777430aa4ddccaa5accec6db90ffc1d47f00d471
- affected 57291ce295c0aca738dd284c4a9c591c09ebee71 – < 97e5b508e96176f1a73888ed89df396d7041bfcb
- affected 57291ce295c0aca738dd284c4a9c591c09ebee71 – < 5834a3a98cd266ad35a229923c0adbd0addc8d68
- affected 57291ce295c0aca738dd284c4a9c591c09ebee71 – < 91d5c5060ee24fe8da88cd585bb43b843d2f0dce
- affected 3.5
- unaffected < 3.5
- unaffected 4.9.334 – ≤ 4.9.*
- unaffected 4.14.300 – ≤ 4.14.*
- unaffected 4.19.267 – ≤ 4.19.*
- unaffected 5.4.225 – ≤ 5.4.*
- unaffected 5.10.156 – ≤ 5.10.*
- unaffected 5.15.80 – ≤ 5.15.*
- unaffected 6.0.10 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (8)
- https://git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768 (opens in a new tab)
- https://git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4c (opens in a new tab)
- https://git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9 (opens in a new tab)
- https://git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9 (opens in a new tab)
- https://git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471 (opens in a new tab)
- https://git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcb (opens in a new tab)
- https://git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68 (opens in a new tab)
- https://git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dce (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-49832)Record last updated .