{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93263", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.097Z", "datePublished": "2026-09-24T15:52:02.877Z", "dateUpdated": "2026-09-24T15:52:02.877Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-24T15:52:02.877Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: eswin: Zero-initialize stack-allocated clk_init_data\n\neswin_clk_register_pll() and eswin_register_clkdiv() declare a struct\nclk_init_data on the stack and only initialize some of its fields\n(parent_data respectively parent_hws). clk_core_populate_parent_map()\nchecks parent_names first and parent_data second before falling back\nto parent_hws, so leftover stack garbage in the uninitialized fields\nhijacks parent resolution and the clk core dereferences a bogus\npointer:\n\n Unable to handle kernel NULL pointer dereference at virtual address 000000000000000c\n Oops [#1]\n epc : __clk_register+0x31a/0x7f0\n [<ffffffff805dc774>] __clk_register+0x31a/0x7f0\n [<ffffffff805dcd76>] devm_clk_hw_register+0x2a/0x94\n [<ffffffff805e319a>] eswin_register_clkdiv+0x80/0xd0\n [<ffffffff805e34a0>] eswin_clk_register_clks+0x162/0x1a0\n [<ffffffff805e3736>] eic7700_clk_probe+0x146/0x180\n [<ffffffff8065d23c>] platform_probe+0x3c/0x7a\n\nObserved on EIC7700 hardware (with the driver backported to a 6.17\ntree); whether the bug triggers depends entirely on what the stack\nhappens to contain when the registration helpers run.\n\nZero-initialize both structures."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/clk/eswin/clk.c"], "versions": [{"version": "cd44f127c1d42833a32ba0a0965255ee6184f8c1", "lessThan": "1183dc2450a268a536a15da8b106ec520cdbd19f", "status": "affected", "versionType": "git"}, {"version": "cd44f127c1d42833a32ba0a0965255ee6184f8c1", "lessThan": "011d8de504bc84402aabc1dda1cf0552fe9a5af2", "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/clk/eswin/clk.c"], "versions": [{"version": "7.1", "status": "affected"}, {"version": "0", "lessThan": "7.1", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc1", "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": "7.1", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1183dc2450a268a536a15da8b106ec520cdbd19f"}, {"url": "https://git.kernel.org/stable/c/011d8de504bc84402aabc1dda1cf0552fe9a5af2"}], "title": "clk: eswin: Zero-initialize stack-allocated clk_init_data", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/clk/eswin/clk.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "1183dc2450a268a536a15da8b106ec520cdbd19f", "status": "affected", "version": "cd44f127c1d42833a32ba0a0965255ee6184f8c1", "versionType": "git"}, {"lessThan": "011d8de504bc84402aabc1dda1cf0552fe9a5af2", "status": "affected", "version": "cd44f127c1d42833a32ba0a0965255ee6184f8c1", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/clk/eswin/clk.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.1"}, {"lessThan": "7.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: eswin: Zero-initialize stack-allocated clk_init_data\n\neswin_clk_register_pll() and eswin_register_clkdiv() declare a struct\nclk_init_data on the stack and only initialize some of its fields\n(parent_data respectively parent_hws). clk_core_populate_parent_map()\nchecks parent_names first and parent_data second before falling back\nto parent_hws, so leftover stack garbage in the uninitialized fields\nhijacks parent resolution and the clk core dereferences a bogus\npointer:\n\n Unable to handle kernel NULL pointer dereference at virtual address 000000000000000c\n Oops [#1]\n epc : __clk_register+0x31a/0x7f0\n [<ffffffff805dc774>] __clk_register+0x31a/0x7f0\n [<ffffffff805dcd76>] devm_clk_hw_register+0x2a/0x94\n [<ffffffff805e319a>] eswin_register_clkdiv+0x80/0xd0\n [<ffffffff805e34a0>] eswin_clk_register_clks+0x162/0x1a0\n [<ffffffff805e3736>] eic7700_clk_probe+0x146/0x180\n [<ffffffff8065d23c>] platform_probe+0x3c/0x7a\n\nObserved on EIC7700 hardware (with the driver backported to a 6.17\ntree); whether the bug triggers depends entirely on what the stack\nhappens to contain when the registration helpers run.\n\nZero-initialize both structures."}], "id": "CVE-2026-93263", "lastModified": "2026-09-24T16:17:23.067", "metrics": {}, "published": "2026-09-24T16:17:23.067", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/011d8de504bc84402aabc1dda1cf0552fe9a5af2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1183dc2450a268a536a15da8b106ec520cdbd19f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}