{"id":"CVE-2022-49507","state":"PUBLISHED","title":"regulator: da9121: Fix uninit-value in da9121_assign_chip_model()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: da9121: Fix uninit-value in da9121_assign_chip_model()\n\nKASAN report slab-out-of-bounds in __regmap_init as follows:\n\nBUG: KASAN: slab-out-of-bounds in __regmap_init drivers/base/regmap/regmap.c:841\nRead of size 1 at addr ffff88803678cdf1 by task xrun/9137\n\nCPU: 0 PID: 9137 Comm: xrun Tainted: G        W         5.18.0-rc2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\nCall Trace:\n <TASK>\n dump_stack_lvl+0xe8/0x15a lib/dump_stack.c:88\n print_report.cold+0xcd/0x69b mm/kasan/report.c:313\n kasan_report+0x8e/0xc0 mm/kasan/report.c:491\n __regmap_init+0x4540/0x4ba0 drivers/base/regmap/regmap.c:841\n __devm_regmap_init+0x7a/0x100 drivers/base/regmap/regmap.c:1266\n __devm_regmap_init_i2c+0x65/0x80 drivers/base/regmap/regmap-i2c.c:394\n da9121_i2c_probe+0x386/0x6d1 drivers/regulator/da9121-regulator.c:1039\n i2c_device_probe+0x959/0xac0 drivers/i2c/i2c-core-base.c:563\n\nThis happend when da9121 device is probe by da9121_i2c_id, but with\ninvalid dts. Thus, chip->subvariant_id is set to -EINVAL, and later\nda9121_assign_chip_model() will access 'regmap' without init it.\n\nFix it by return -EINVAL from da9121_assign_chip_model() if\n'chip->subvariant_id' is invalid.","publishedAt":"2025-02-26T02:13:38.821Z","updatedAt":"2026-05-11T19:01:15.341Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f3fbd5566f6a8cdb7c48ab29bd1096205b7fbcaf","status":"affected","lessThan":"be96baa0c79588084e0d7a4fa21c574cec9a57f4","versionType":"git"},{"version":"f3fbd5566f6a8cdb7c48ab29bd1096205b7fbcaf","status":"affected","lessThan":"7da64c7c82c9b29b628a62c88a8c2fb06990563d","versionType":"git"},{"version":"f3fbd5566f6a8cdb7c48ab29bd1096205b7fbcaf","status":"affected","lessThan":"60f21eda69f1b5727a97d2077da766eb27fcc21f","versionType":"git"},{"version":"f3fbd5566f6a8cdb7c48ab29bd1096205b7fbcaf","status":"affected","lessThan":"bab76514aca36bc513224525d5598da676938218","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/da9121-regulator.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.11","versionType":"semver"},{"version":"5.15.46","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.17.14","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18.3","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/da9121-regulator.c"]}],"references":["https://git.kernel.org/stable/c/be96baa0c79588084e0d7a4fa21c574cec9a57f4","https://git.kernel.org/stable/c/7da64c7c82c9b29b628a62c88a8c2fb06990563d","https://git.kernel.org/stable/c/60f21eda69f1b5727a97d2077da766eb27fcc21f","https://git.kernel.org/stable/c/bab76514aca36bc513224525d5598da676938218"],"weaknesses":["CWE-908"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49507.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49507","state":"PUBLISHED","datePublished":"2025-02-26T02:13:38.821Z","dateUpdated":"2026-05-11T19:01:15.341Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T02:08:31.587Z"},"containers":{"cna":{"title":"regulator: da9121: Fix uninit-value in da9121_assign_chip_model()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: da9121: Fix uninit-value in da9121_assign_chip_model()\n\nKASAN report slab-out-of-bounds in __regmap_init as follows:\n\nBUG: KASAN: slab-out-of-bounds in __regmap_init drivers/base/regmap/regmap.c:841\nRead of size 1 at addr ffff88803678cdf1 by task xrun/9137\n\nCPU: 0 PID: 9137 Comm: xrun Tainted: G        W         5.18.0-rc2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\nCall Trace:\n <TASK>\n dump_stack_lvl+0xe8/0x15a lib/dump_stack.c:88\n print_report.cold+0xcd/0x69b mm/kasan/report.c:313\n kasan_report+0x8e/0xc0 mm/kasan/report.c:491\n __regmap_init+0x4540/0x4ba0 drivers/base/regmap/regmap.c:841\n __devm_regmap_init+0x7a/0x100 drivers/base/regmap/regmap.c:1266\n __devm_regmap_init_i2c+0x65/0x80 drivers/base/regmap/regmap-i2c.c:394\n da9121_i2c_probe+0x386/0x6d1 drivers/regulator/da9121-regulator.c:1039\n i2c_device_probe+0x959/0xac0 drivers/i2c/i2c-core-base.c:563\n\nThis happend when da9121 device is probe by da9121_i2c_id, but with\ninvalid dts. Thus, chip->subvariant_id is set to -EINVAL, and later\nda9121_assign_chip_model() will access 'regmap' without init it.\n\nFix it by return -EINVAL from da9121_assign_chip_model() if\n'chip->subvariant_id' is invalid."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f3fbd5566f6a8cdb7c48ab29bd1096205b7fbcaf","status":"affected","lessThan":"be96baa0c79588084e0d7a4fa21c574cec9a57f4","versionType":"git"},{"version":"f3fbd5566f6a8cdb7c48ab29bd1096205b7fbcaf","status":"affected","lessThan":"7da64c7c82c9b29b628a62c88a8c2fb06990563d","versionType":"git"},{"version":"f3fbd5566f6a8cdb7c48ab29bd1096205b7fbcaf","status":"affected","lessThan":"60f21eda69f1b5727a97d2077da766eb27fcc21f","versionType":"git"},{"version":"f3fbd5566f6a8cdb7c48ab29bd1096205b7fbcaf","status":"affected","lessThan":"bab76514aca36bc513224525d5598da676938218","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/da9121-regulator.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.11","versionType":"semver"},{"version":"5.15.46","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.17.14","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18.3","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/da9121-regulator.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/be96baa0c79588084e0d7a4fa21c574cec9a57f4"},{"url":"https://git.kernel.org/stable/c/7da64c7c82c9b29b628a62c88a8c2fb06990563d"},{"url":"https://git.kernel.org/stable/c/60f21eda69f1b5727a97d2077da766eb27fcc21f"},{"url":"https://git.kernel.org/stable/c/bab76514aca36bc513224525d5598da676938218"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:01:15.341Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.46"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.17.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.18.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2022-49507","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:38:28.959306Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-908","lang":"en","type":"CWE","description":"CWE-908 Use of Uninitialized Resource"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:46:42.759Z"}}]}}}