drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval()
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.6.160, 6.12.114, 6.18.36, 7.0.13
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval() [Why & How] The aux_rd_interval array in struct dc_lttpr_caps is declared with MAX_REPEATER_CNT - 1 (7) elements, indexed 0..6. However, the offset parameter passed to dp_get_eq_aux_rd_interval() can be as large as MAX_REPEATER_CNT (8) when a sink reports 8 LTTPR repeaters via DPCD. This leads to an out-of-bounds read of aux_rd_interval[7] when offset is 8. Fix this by growing aux_rd_interval to MAX_REPEATER_CNT elements to accommodate the full range of valid repeater counts defined by the DP spec. (cherry picked from commit a55a458a8df37a65ffda5cf721d554a8f74f6b04)
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 8e5100a575433cc185a2e224280fbd873b6692dd · fixed in a632474c793b7f2a9bbd3d8e3d0dd7d256989300; From 8e5100a575433cc185a2e224280fbd873b6692dd · fixed in 7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0; From 8e5100a575433cc185a2e224280fbd873b6692dd · fixed in 454d3b3d499c18373f8960d31aea48338a3ca9e0; From 8e5100a575433cc185a2e224280fbd873b6692dd · fixed in dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e; From 8e5100a575433cc185a2e224280fbd873b6692dd · fixed in e8b4d37eba05141ee01794fc6b7f2da808cee83b
- Linux Linux
5.6
- KernelLinux
From 5.6.0 · fixed in 6.6.160; From 6.7.0 · fixed in 6.12.114; From 6.13.0 · fixed in 6.18.36; From 6.19.0 · fixed in 7.0.13