{"id":"CVE-2026-23162","state":"PUBLISHED","title":"drm/xe/nvm: Fix double-free on aux add failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/nvm: Fix double-free on aux add failure\n\nAfter a successful auxiliary_device_init(), aux_dev->dev.release\n(xe_nvm_release_dev()) is responsible for the kfree(nvm). When\nthere is failure with auxiliary_device_add(), driver will call\nauxiliary_device_uninit(), which call put_device(). So that the\n.release callback will be triggered to free the memory associated\nwith the auxiliary_device.\n\nMove the kfree(nvm) into the auxiliary_device_init() failure path\nand remove the err goto path to fix below error.\n\n\"\n[   13.232905] ==================================================================\n[   13.232911] BUG: KASAN: double-free in xe_nvm_init+0x751/0xf10 [xe]\n[   13.233112] Free of addr ffff888120635000 by task systemd-udevd/273\n\n[   13.233120] CPU: 8 UID: 0 PID: 273 Comm: systemd-udevd Not tainted 6.19.0-rc2-lgci-xe-kernel+ #225 PREEMPT(voluntary)\n...\n[   13.233125] Call Trace:\n[   13.233126]  <TASK>\n[   13.233127]  dump_stack_lvl+0x7f/0xc0\n[   13.233132]  print_report+0xce/0x610\n[   13.233136]  ? kasan_complete_mode_report_info+0x5d/0x1e0\n[   13.233139]  ? xe_nvm_init+0x751/0xf10 [xe]\n...\n\"\n\nv2: drop err goto path. (Alexander)\n\n(cherry picked from commit a3187c0c2bbd947ffff97f90d077ac88f9c2a215)","publishedAt":"2026-02-14T16:01:27.243Z","updatedAt":"2026-05-11T22:01:24.681Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7926ba2143d8fef40bb940232818c7363e33598c","status":"affected","lessThan":"32887d8e4bc0696b3cb6c5915a42b39cfd3434f4","versionType":"git"},{"version":"7926ba2143d8fef40bb940232818c7363e33598c","status":"affected","lessThan":"8a44241b0b83a6047c5448da1fff03fcc29496b5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/xe/xe_nvm.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.9","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/xe/xe_nvm.c"]}],"references":["https://git.kernel.org/stable/c/32887d8e4bc0696b3cb6c5915a42b39cfd3434f4","https://git.kernel.org/stable/c/8a44241b0b83a6047c5448da1fff03fcc29496b5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23162.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23162","state":"PUBLISHED","datePublished":"2026-02-14T16:01:27.243Z","dateUpdated":"2026-05-11T22:01:24.681Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.980Z"},"containers":{"cna":{"title":"drm/xe/nvm: Fix double-free on aux add failure","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/nvm: Fix double-free on aux add failure\n\nAfter a successful auxiliary_device_init(), aux_dev->dev.release\n(xe_nvm_release_dev()) is responsible for the kfree(nvm). When\nthere is failure with auxiliary_device_add(), driver will call\nauxiliary_device_uninit(), which call put_device(). So that the\n.release callback will be triggered to free the memory associated\nwith the auxiliary_device.\n\nMove the kfree(nvm) into the auxiliary_device_init() failure path\nand remove the err goto path to fix below error.\n\n\"\n[   13.232905] ==================================================================\n[   13.232911] BUG: KASAN: double-free in xe_nvm_init+0x751/0xf10 [xe]\n[   13.233112] Free of addr ffff888120635000 by task systemd-udevd/273\n\n[   13.233120] CPU: 8 UID: 0 PID: 273 Comm: systemd-udevd Not tainted 6.19.0-rc2-lgci-xe-kernel+ #225 PREEMPT(voluntary)\n...\n[   13.233125] Call Trace:\n[   13.233126]  <TASK>\n[   13.233127]  dump_stack_lvl+0x7f/0xc0\n[   13.233132]  print_report+0xce/0x610\n[   13.233136]  ? kasan_complete_mode_report_info+0x5d/0x1e0\n[   13.233139]  ? xe_nvm_init+0x751/0xf10 [xe]\n...\n\"\n\nv2: drop err goto path. (Alexander)\n\n(cherry picked from commit a3187c0c2bbd947ffff97f90d077ac88f9c2a215)"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7926ba2143d8fef40bb940232818c7363e33598c","status":"affected","lessThan":"32887d8e4bc0696b3cb6c5915a42b39cfd3434f4","versionType":"git"},{"version":"7926ba2143d8fef40bb940232818c7363e33598c","status":"affected","lessThan":"8a44241b0b83a6047c5448da1fff03fcc29496b5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/xe/xe_nvm.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.9","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/xe/xe_nvm.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/32887d8e4bc0696b3cb6c5915a42b39cfd3434f4"},{"url":"https://git.kernel.org/stable/c/8a44241b0b83a6047c5448da1fff03fcc29496b5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:01:24.681Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.18.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}