{"id":"CVE-2022-49507","summary":"regulator: da9121: Fix uninit-value in da9121_assign_chip_model()","details":"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 \u003cTASK\u003e\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-\u003esubvariant_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-\u003esubvariant_id' is invalid.","modified":"2026-04-02T08:27:39.183245Z","published":"2025-02-26T02:13:38.821Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1241-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49507.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/60f21eda69f1b5727a97d2077da766eb27fcc21f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7da64c7c82c9b29b628a62c88a8c2fb06990563d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bab76514aca36bc513224525d5598da676938218"},{"type":"WEB","url":"https://git.kernel.org/stable/c/be96baa0c79588084e0d7a4fa21c574cec9a57f4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49507.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49507"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f3fbd5566f6a8cdb7c48ab29bd1096205b7fbcaf"},{"fixed":"be96baa0c79588084e0d7a4fa21c574cec9a57f4"},{"fixed":"7da64c7c82c9b29b628a62c88a8c2fb06990563d"},{"fixed":"60f21eda69f1b5727a97d2077da766eb27fcc21f"},{"fixed":"bab76514aca36bc513224525d5598da676938218"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49507.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}