{"id":"CVE-2022-49379","summary":"driver core: Fix wait_for_device_probe() & deferred_probe_timeout interaction","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: Fix wait_for_device_probe() & deferred_probe_timeout interaction\n\nMounting NFS rootfs was timing out when deferred_probe_timeout was\nnon-zero [1].  This was because ip_auto_config() initcall times out\nwaiting for the network interfaces to show up when\ndeferred_probe_timeout was non-zero. While ip_auto_config() calls\nwait_for_device_probe() to make sure any currently running deferred\nprobe work or asynchronous probe finishes, that wasn't sufficient to\naccount for devices being deferred until deferred_probe_timeout.\n\nCommit 35a672363ab3 (\"driver core: Ensure wait_for_device_probe() waits\nuntil the deferred_probe_timeout fires\") tried to fix that by making\nsure wait_for_device_probe() waits for deferred_probe_timeout to expire\nbefore returning.\n\nHowever, if wait_for_device_probe() is called from the kernel_init()\ncontext:\n\n- Before deferred_probe_initcall() [2], it causes the boot process to\n  hang due to a deadlock.\n\n- After deferred_probe_initcall() [3], it blocks kernel_init() from\n  continuing till deferred_probe_timeout expires and beats the point of\n  deferred_probe_timeout that's trying to wait for userspace to load\n  modules.\n\nNeither of this is good. So revert the changes to\nwait_for_device_probe().\n\n[1] - https://lore.kernel.org/lkml/TYAPR01MB45443DF63B9EF29054F7C41FD8C60@TYAPR01MB4544.jpnprd01.prod.outlook.com/\n[2] - https://lore.kernel.org/lkml/YowHNo4sBjr9ijZr@dev-arch.thelio-3990X/\n[3] - https://lore.kernel.org/lkml/Yo3WvGnNk3LvLb7R@linutronix.de/","modified":"2026-04-02T08:27:32.396829Z","published":"2025-02-26T02:11:17.795Z","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-2022-49379.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/29357883a89193863f3cc6a2c5e0b42ceb022761"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4ad6af07efcca85369c21e4897b3020cff2c170b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/528229474e1cbb1b3451cb713d94aecb5f6ee264"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5ee76c256e928455212ab759c51d198fedbe7523"},{"type":"WEB","url":"https://git.kernel.org/stable/c/71cbce75031aed26c72c2dc8a83111d181685f1b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49379.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49379"},{"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":"35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe"},{"fixed":"71cbce75031aed26c72c2dc8a83111d181685f1b"},{"fixed":"29357883a89193863f3cc6a2c5e0b42ceb022761"},{"fixed":"528229474e1cbb1b3451cb713d94aecb5f6ee264"},{"fixed":"4ad6af07efcca85369c21e4897b3020cff2c170b"},{"fixed":"5ee76c256e928455212ab759c51d198fedbe7523"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49379.json"}}],"schema_version":"1.7.5"}