| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/fbdev-dma: Only set smem_start is enable per module option\n\nOnly export struct fb_info.fix.smem_start if that is required by the\nuser and the memory does not come from vmalloc().\n\nSetting struct fb_info.fix.smem_start breaks systems where DMA\nmemory is backed by vmalloc address space. An example error is\nshown below.\n\n[ 3.536043] ------------[ cut here ]------------\n[ 3.540716] virt_to_phys used for non-linear address: 000000007fc4f540 (0xffff800086001000)\n[ 3.552628] WARNING: CPU: 4 PID: 61 at arch/arm64/mm/physaddr.c:12 __virt_to_phys+0x68/0x98\n[ 3.565455] Modules linked in:\n[ 3.568525] CPU: 4 PID: 61 Comm: kworker/u12:5 Not tainted 6.6.23-06226-g4986cc3e1b75-dirty #250\n[ 3.577310] Hardware name: NXP i.MX95 19X19 board (DT)\n[ 3.582452] Workqueue: events_unbound deferred_probe_work_func\n[ 3.588291] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 3.595233] pc : __virt_to_phys+0x68/0x98\n[ 3.599246] lr : __virt_to_phys+0x68/0x98\n[ 3.603276] sp : ffff800083603990\n[ 3.677939] Call trace:\n[ 3.680393] __virt_to_phys+0x68/0x98\n[ 3.684067] drm_fbdev_dma_helper_fb_probe+0x138/0x238\n[ 3.689214] __drm_fb_helper_initial_config_and_unlock+0x2b0/0x4c0\n[ 3.695385] drm_fb_helper_initial_config+0x4c/0x68\n[ 3.700264] drm_fbdev_dma_client_hotplug+0x8c/0xe0\n[ 3.705161] drm_client_register+0x60/0xb0\n[ 3.709269] drm_fbdev_dma_setup+0x94/0x148\n\nAdditionally, DMA memory is assumed to by contiguous in physical\naddress space, which is not guaranteed by vmalloc().\n\nResolve this by checking the module flag drm_leak_fbdev_smem when\nDRM allocated the instance of struct fb_info. Fbdev-dma then only\nsets smem_start only if required (via FBINFO_HIDE_SMEM_START). Also\nguarantee that the framebuffer is not located in vmalloc address\nspace." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/gpu/drm/drm_fb_helper.c", |
| "drivers/gpu/drm/drm_fbdev_dma.c" |
| ], |
| "versions": [ |
| { |
| "version": "a51c7663f144606a5f08e772fa3e1e4f2277a614", |
| "lessThan": "f29fcfbf6067c0d8c83f84a045da9276c08deac5", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a51c7663f144606a5f08e772fa3e1e4f2277a614", |
| "lessThan": "00702cfa8432ac67a72f56de5e1d278ddea2ebde", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a51c7663f144606a5f08e772fa3e1e4f2277a614", |
| "lessThan": "d92a7580392ad4681b1d4f9275d00b95375ebe01", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/gpu/drm/drm_fb_helper.c", |
| "drivers/gpu/drm/drm_fbdev_dma.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.4", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.4", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.37", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.9.8", |
| "lessThanOrEqual": "6.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.10", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.4", |
| "versionEndExcluding": "6.6.37" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.4", |
| "versionEndExcluding": "6.9.8" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.4", |
| "versionEndExcluding": "6.10" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/f29fcfbf6067c0d8c83f84a045da9276c08deac5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/00702cfa8432ac67a72f56de5e1d278ddea2ebde" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/d92a7580392ad4681b1d4f9275d00b95375ebe01" |
| } |
| ], |
| "title": "drm/fbdev-dma: Only set smem_start is enable per module option", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-41094", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
