{"id":"DEBIAN-CVE-2026-64546","details":"In the Linux kernel, the following vulnerability has been resolved:  drm/edid: fix OOB read in drm_parse_tiled_block()  drm_parse_tiled_block() casts the DisplayID block to a struct displayid_tiled_block and reads the full fixed layout up to tile-\u003etopology_id[7] without checking block-\u003enum_bytes. The DisplayID iterator only validates the declared payload length, so a crafted EDID can advertise a tiled-display block (tag DATA_BLOCK_TILED_DISPLAY, or DATA_BLOCK_2_TILED_DISPLAY_TOPOLOGY for v2.0) with a small num_bytes at the end of a DisplayID extension. The read then runs past the end of the exact-sized kmemdup()'d EDID allocation, a heap out-of-bounds read.  Reject blocks shorter than the spec's 22-byte tiled payload before reading the fixed struct, as drm_parse_vesa_mso_data() already does.    BUG: KASAN: slab-out-of-bounds in drm_edid_connector_update   Read of size 2 at addr ffff888010077700 by task exploit/147    dump_stack_lvl (lib/dump_stack.c:94 ...)    print_report (mm/kasan/report.c:378 ...)    kasan_report (mm/kasan/report.c:595)    drm_edid_connector_update (drivers/gpu/drm/drm_edid.c:7581)    bochs_connector_helper_get_modes (drivers/gpu/drm/tiny/bochs.c:574)    drm_helper_probe_single_connector_modes (drivers/gpu/drm/drm_probe_helper.c:426)    status_store (drivers/gpu/drm/drm_sysfs.c:219)    ...    vfs_write (fs/read_write.c:595 fs/read_write.c:688)    ksys_write (fs/read_write.c:740)","modified":"2026-09-01T16:06:56.004090062Z","published":"2026-07-27T21:17:07.270Z","upstream":["CVE-2026-64546"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-64546"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.180-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.123-1","6.1.124-1","6.1.128-1","6.1.129-1","6.1.133-1","6.1.135-1","6.1.137-1","6.1.139-1","6.1.140-1","6.1.147-1","6.1.148-1","6.1.153-1","6.1.158-1","6.1.159-1","6.1.162-1","6.1.164-1","6.1.170-1","6.1.170-2","6.1.170-3","6.1.172-1","6.1.174-1","6.1.176-1","6.1.177-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not 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