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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2022-49948

vt: Clear selection before changing the font

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 009e39ae44f4191188aeb6dfbf661b771dbbe515 to < c555cf04684fde39b5b0dd9fd80730030ee10c4aaffected
  • 009e39ae44f4191188aeb6dfbf661b771dbbe515 to < e9ba4611ddf676194385506222cce7b0844e708eaffected
  • 009e39ae44f4191188aeb6dfbf661b771dbbe515 to < f74b4a41c5d7c9522469917e3072e55d435efd9eaffected
  • 009e39ae44f4191188aeb6dfbf661b771dbbe515 to < 1cf1930369c9dc428d827b60260c53271bff3285affected
  • 009e39ae44f4191188aeb6dfbf661b771dbbe515 to < 989201bb8c00b222235aff04e6200230d29dc7bbaffected
  • 009e39ae44f4191188aeb6dfbf661b771dbbe515 to < 2535431ae967ad17585513649625fea7db28d4dbaffected
  • 009e39ae44f4191188aeb6dfbf661b771dbbe515 to < c904fe03c4bd1f356a58797d39e2a5d0ca15cefcaffected
  • 009e39ae44f4191188aeb6dfbf661b771dbbe515 to < 566f9c9f89337792070b5a6062dff448b3e7977faffected
  • e60f8fcce05042e8f8cea25ee81fecc1222114cfaffected
  • 5812a9bc9d68a82c2cc839f88e6f7a05093ab39daffected
  • 863ad19fd654c485e3beec3575c4d74a1e74369eaffected
  • dbc3fd44f957a39407e889287bf61fa0ef3ecc14affected
  • 0b2a0a58ad22f9d6dfc641bc5ec46057493f22a5affected
  • 9f2d48f0745f921040df91bfe8fa7f0339cd7497affected
  • 3425e397fb23cc2e8e6fb8f5b8226dcb447e84ddaffected
  • eeae0a12a16650ff494d5faefa371cd9e7079575affected
  • 3.2.85 to < 3.3affected
  • 3.10.105 to < 3.11affected
  • 3.12.68 to < 3.13affected
  • 3.16.40 to < 3.17affected
  • 3.18.45 to < 3.19affected
  • 4.1.36 to < 4.2affected
  • 4.4.31 to < 4.5affected
  • 4.8.7 to < 4.9affected

Linux Linux

Default version status: affected

  • 4.9affected
  • 0 to < 4.9unaffected
  • 4.9.328 to ≤ 4.9.*unaffected
  • 4.14.293 to ≤ 4.14.*unaffected
  • 4.19.258 to ≤ 4.19.*unaffected
  • 5.4.213 to ≤ 5.4.*unaffected
  • 5.10.142 to ≤ 5.10.*unaffected
  • 5.15.66 to ≤ 5.15.*unaffected
  • 5.19.8 to ≤ 5.19.*unaffected
  • 6.0 to ≤ *unaffected

References