CVE-2021-47652
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe() I got a null-ptr-deref report: BUG: kernel NULL pointer dereference, address: 0000000000000000 ... RIP: 0010:fb_destroy_modelist+0x38/0x100 ... Call Trace: ufx_usb_probe.cold+0x2b5/0xac1 [smscufx] usb_probe_interface+0x1aa/0x3c0 [usbcore] really_probe+0x167/0x460 ... ret_from_fork+0x1f/0x30 If fb_alloc_cmap() fails in ufx_usb_probe(), fb_destroy_modelist() will be called to destroy modelist in the error handling path. But modelist has not been initialized yet, so it will result in null-ptr-deref. Initialize modelist before calling fb_alloc_cmap() to fix this bug.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 | affected | git | d1b6a1f0c23b7164250479bf92e2893291dca539 | Unavailable | None listed |
| 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 | affected | git | 0fd28daec73525382e5c992db8743bf76e42cd5c | Unavailable | None listed |
| 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 | affected | git | dd3a6cc7385b89ec2303f39dfc3bafa4e24cec4b | Unavailable | None listed |
| 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 | affected | git | da8b269cc0a2526ebeaccbe2484c999eb0f822cf | Unavailable | None listed |
| 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 | affected | git | 64ec3e678d76419f207b9cdd338dda438ca10b1c | Unavailable | None listed |
| 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 | affected | git | c420b540db4b5d69de0a36d8b9d9a6a79a04f05a | Unavailable | None listed |
| 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 | affected | git | d396c651e2b508b6179bb678cc029f3becbf5170 | Unavailable | None listed |
| 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 | affected | git | 9280ef235b05e8f19f8bc6d547b992f0a0ef398d | Unavailable | None listed |
| 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 | affected | git | 1791f487f877a9e83d81c8677bd3e7b259e7cb27 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.2 | Unavailable | None listed |
| 4.9.311 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.276 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.238 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.189 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.110 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.33 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.16.19 | unaffected | semver | Unavailable | 5.16.* | None listed |
| 5.17.2 | unaffected | semver | Unavailable | 5.17.* | None listed |
| 5.18 | unaffected | original_commit_for_fix | Unavailable | * | None listed |