fbdev: modedb: fix a possible UAF in fb_find_mode()
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Linux | Linux | unaffected |
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| Linux | Linux | affected |
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Configuration 1 [-]
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No data.
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| Linux | Linux Kernel |
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| Source | ID | Title |
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Ubuntu USN |
USN-8726-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8727-1 | Linux kernel (OEM) vulnerabilities |
Ubuntu USN |
USN-8728-1 | Linux kernel (GCP) vulnerabilities |
Ubuntu USN |
USN-8760-1 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-8726-2 | Linux kernel (Raspberry Pi) vulnerabilities |
Ubuntu USN |
USN-8726-3 | Linux kernel (IBM) vulnerabilities |
Ubuntu USN |
USN-8800-1 | Linux kernel (NVIDIA BaseOS) vulnerabilities |
Ubuntu USN |
USN-8760-2 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-8726-4 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8728-2 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-8728-3 | Linux kernel (Oracle) vulnerabilities |
Ubuntu USN |
USN-8917-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8918-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-9024-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-9025-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-9026-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-9040-1 | Linux kernel (Low Latency NVIDIA) vulnerabilities |
Ubuntu USN |
USN-9066-1 | Linux kernel (HWE) vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.119% probability within 30 days)
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ssvc
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| Weaknesses | CWE-416 | |
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cvssV3_1
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cvssV3_1
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| Type | Values Removed | Values Added |
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| Weaknesses | CWE-416 |
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| Weaknesses | CWE-825 | |
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threat_severity
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cvssV3_1
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| Weaknesses | CWE-416 |
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| Description | In the Linux kernel, the following vulnerability has been resolved: fbdev: modedb: fix a possible UAF in fb_find_mode() If mode_option is NULL, it is assigned from mode_option_buf: if (!mode_option) { fb_get_options(NULL, &mode_option_buf); mode_option = mode_option_buf; } Later, name is assigned from mode_option: const char *name = mode_option; However, mode_option_buf is freed before name is no longer used: kfree(mode_option_buf); while name is still accessed by: if ((name_matches(db[i], name, namelen) || Since name aliases mode_option_buf, this may result in a use-after-free. Fix this by extending the lifetime of mode_option_buf until the end of the function by using scope-based resource management for cleanup. | |
| Title | fbdev: modedb: fix a possible UAF in fb_find_mode() | |
| First Time appeared |
Linux
Linux linux Kernel |
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| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
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| References |
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