Description
In the Linux kernel, the following vulnerability has been resolved: drm/vboxvideo: Replace fake VLA at end of vbva_mouse_pointer_shape with real VLA Replace the fake VLA at end of the vbva_mouse_pointer_shape shape with a real VLA to fix a "memcpy: detected field-spanning write error" warning: [ 13.319813] memcpy: detected field-spanning write (size 16896) of single field "p->data" at drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 (size 4) [ 13.319841] WARNING: CPU: 0 PID: 1105 at drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 hgsmi_update_pointer_shape+0x192/0x1c0 [vboxvideo] [ 13.320038] Call Trace: [ 13.320173] hgsmi_update_pointer_shape [vboxvideo] [ 13.320184] vbox_cursor_atomic_update [vboxvideo] Note as mentioned in the added comment it seems the original length calculation for the allocated and send hgsmi buffer is 4 bytes too large. Changing this is not the goal of this patch, so this behavior is kept.
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
dd55d44f408419278c00887bfcb2261d0caae350 to < 02c86c5d5ef4bbba17d38859c74872825f536617affecteddd55d44f408419278c00887bfcb2261d0caae350 to < 75f828e944dacaac8870418461d3d48a1ecf2331affecteddd55d44f408419278c00887bfcb2261d0caae350 to < 34a422274b693507025a7db21519865d1862afcbaffecteddd55d44f408419278c00887bfcb2261d0caae350 to < 7458a6cdaebb3dc59af8578ee354fae78a154c4aaffecteddd55d44f408419278c00887bfcb2261d0caae350 to < 9eb32bd23bbcec44bcbef27b7f282b7a7f3d0391affecteddd55d44f408419278c00887bfcb2261d0caae350 to < fae9dc12c61ce23cf29d09824a741b7b1ff8f01faffecteddd55d44f408419278c00887bfcb2261d0caae350 to < d92b90f9a54d9300a6e883258e79f36dab53bfaeaffected
Linux Linux
Default version status: affected
4.13affected0 to < 4.13unaffected5.4.285 to ≤ 5.4.*unaffected5.10.229 to ≤ 5.10.*unaffected5.15.170 to ≤ 5.15.*unaffected6.1.115 to ≤ 6.1.*unaffected6.6.59 to ≤ 6.6.*unaffected6.11.6 to ≤ 6.11.*unaffected6.12 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/02c86c5d5ef4bbba17d38859c74872825f536617 ↗
- https://git.kernel.org/stable/c/75f828e944dacaac8870418461d3d48a1ecf2331 ↗
- https://git.kernel.org/stable/c/34a422274b693507025a7db21519865d1862afcb ↗
- https://git.kernel.org/stable/c/7458a6cdaebb3dc59af8578ee354fae78a154c4a ↗
- https://git.kernel.org/stable/c/9eb32bd23bbcec44bcbef27b7f282b7a7f3d0391 ↗
- https://git.kernel.org/stable/c/fae9dc12c61ce23cf29d09824a741b7b1ff8f01f ↗
- https://git.kernel.org/stable/c/d92b90f9a54d9300a6e883258e79f36dab53bfae ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗