{"id":"DEBIAN-CVE-2022-49507","details":"In the Linux kernel, the following vulnerability has been resolved:  regulator: da9121: Fix uninit-value in da9121_assign_chip_model()  KASAN report slab-out-of-bounds in __regmap_init as follows:  BUG: KASAN: slab-out-of-bounds in __regmap_init drivers/base/regmap/regmap.c:841 Read of size 1 at addr ffff88803678cdf1 by task xrun/9137  CPU: 0 PID: 9137 Comm: xrun Tainted: G        W         5.18.0-rc2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace:  \u003cTASK\u003e  dump_stack_lvl+0xe8/0x15a lib/dump_stack.c:88  print_report.cold+0xcd/0x69b mm/kasan/report.c:313  kasan_report+0x8e/0xc0 mm/kasan/report.c:491  __regmap_init+0x4540/0x4ba0 drivers/base/regmap/regmap.c:841  __devm_regmap_init+0x7a/0x100 drivers/base/regmap/regmap.c:1266  __devm_regmap_init_i2c+0x65/0x80 drivers/base/regmap/regmap-i2c.c:394  da9121_i2c_probe+0x386/0x6d1 drivers/regulator/da9121-regulator.c:1039  i2c_device_probe+0x959/0xac0 drivers/i2c/i2c-core-base.c:563  This happend when da9121 device is probe by da9121_i2c_id, but with invalid dts. Thus, chip-\u003esubvariant_id is set to -EINVAL, and later da9121_assign_chip_model() will access 'regmap' without init it.  Fix it by return -EINVAL from da9121_assign_chip_model() if 'chip-\u003esubvariant_id' is invalid.","modified":"2026-08-27T23:04:46.659282915Z","published":"2025-02-26T07:01:26.830Z","upstream":["CVE-2022-49507"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49507"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49507.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49507.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49507.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}