Answer in brief
CVE-2022-49948 records a High severity (CVSS 7.8) vulnerability in vt: Clear selection before changing the font. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2022-49948 records a High severity (CVSS 7.8) vulnerability in vt: Clear selection before changing the font. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <c555cf04684fde39b5b0dd9fd80730030ee10c4a || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <e9ba4611ddf676194385506222cce7b0844e708e || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <f74b4a41c5d7c9522469917e3072e55d435efd9e || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <1cf1930369c9dc428d827b60260c53271bff3285 || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <989201bb8c00b222235aff04e6200230d29dc7bb || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <2535431ae967ad17585513649625fea7db28d4db || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <c904fe03c4bd1f356a58797d39e2a5d0ca15cefc || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <566f9c9f89337792070b5a6062dff448b3e7977f || e60f8fcce05042e8f8cea25ee81fecc1222114cf || 5812a9bc9d68a82c2cc839f88e6f7a05093ab39d || 863ad19fd654c485e3beec3575c4d74a1e74369e || dbc3fd44f957a39407e889287bf61fa0ef3ecc14 || 0b2a0a58ad22f9d6dfc641bc5ec46057493f22a5 || 9f2d48f0745f921040df91bfe8fa7f0339cd7497 || 3425e397fb23cc2e8e6fb8f5b8226dcb447e84dd || eeae0a12a16650ff494d5faefa371cd9e7079575 || >=3.2.85 <3.3 || >=3.10.105 <3.11 || >=3.12.68 <3.13 || >=3.16.40 <3.17 || >=3.18.45 <3.19 || >=4.1.36 <4.2 || >=4.4.31 <4.5 || >=4.8.7 <4.9 | c555cf04684fde39b5b0dd9fd80730030ee10c4a, e9ba4611ddf676194385506222cce7b0844e708e, f74b4a41c5d7c9522469917e3072e55d435efd9e, 1cf1930369c9dc428d827b60260c53271bff3285, 989201bb8c00b222235aff04e6200230d29dc7bb, 2535431ae967ad17585513649625fea7db28d4db, c904fe03c4bd1f356a58797d39e2a5d0ca15cefc, 566f9c9f89337792070b5a6062dff448b3e7977f, 3.3, 3.11, 3.13, 3.17, 3.19, 4.2, 4.5, 4.9 |
| Linux/Linuxgeneric | 4.9 | Not reported |
Published upstream
Jun 18, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: vt: Clear selection before changing the font When changing the console font with ioctl(KDFONTOP) the new font size can be bigger than the previous font. A previous selection may thus now be outside of the new screen size and thus trigger out-of-bounds accesses to graphics memory if the selection is removed in vc_do_resize(). Prevent such out-of-memory accesses by dropping the selection before the various con_font_set() console handlers are called.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <c555cf04684fde39b5b0dd9fd80730030ee10c4a || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <e9ba4611ddf676194385506222cce7b0844e708e || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <f74b4a41c5d7c9522469917e3072e55d435efd9e || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <1cf1930369c9dc428d827b60260c53271bff3285 || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <989201bb8c00b222235aff04e6200230d29dc7bb || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <2535431ae967ad17585513649625fea7db28d4db || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <c904fe03c4bd1f356a58797d39e2a5d0ca15cefc || >=009e39ae44f4191188aeb6dfbf661b771dbbe515 <566f9c9f89337792070b5a6062dff448b3e7977f || e60f8fcce05042e8f8cea25ee81fecc1222114cf || 5812a9bc9d68a82c2cc839f88e6f7a05093ab39d || 863ad19fd654c485e3beec3575c4d74a1e74369e || dbc3fd44f957a39407e889287bf61fa0ef3ecc14 || 0b2a0a58ad22f9d6dfc641bc5ec46057493f22a5 || 9f2d48f0745f921040df91bfe8fa7f0339cd7497 || 3425e397fb23cc2e8e6fb8f5b8226dcb447e84dd || eeae0a12a16650ff494d5faefa371cd9e7079575 || >=3.2.85 <3.3 || >=3.10.105 <3.11 || >=3.12.68 <3.13 || >=3.16.40 <3.17 || >=3.18.45 <3.19 || >=4.1.36 <4.2 || >=4.4.31 <4.5 || >=4.8.7 <4.9 | c555cf04684fde39b5b0dd9fd80730030ee10c4a, e9ba4611ddf676194385506222cce7b0844e708e, f74b4a41c5d7c9522469917e3072e55d435efd9e, 1cf1930369c9dc428d827b60260c53271bff3285, 989201bb8c00b222235aff04e6200230d29dc7bb, 2535431ae967ad17585513649625fea7db28d4db, c904fe03c4bd1f356a58797d39e2a5d0ca15cefc, 566f9c9f89337792070b5a6062dff448b3e7977f, 3.3, 3.11, 3.13, 3.17, 3.19, 4.2, 4.5, 4.9 |
| Linux/Linuxgeneric | 4.9 | Not reported |
Published upstream
Jun 18, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: vt: Clear selection before changing the font When changing the console font with ioctl(KDFONTOP) the new font size can be bigger than the previous font. A previous selection may thus now be outside of the new screen size and thus trigger out-of-bounds accesses to graphics memory if the selection is removed in vc_do_resize(). Prevent such out-of-memory accesses by dropping the selection before the various con_font_set() console handlers are called.
Quoted source text, attributed separately from HOL analysis.