cbcvebase.
CVE-2022-49379
published 2025-02-26

CVE-2022-49379: In the Linux kernel, the following vulnerability has been resolved: driver core: Fix wait_for_device_probe() & deferred_probe_timeout interaction Mounting NFS…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.20%
10.0th percentile
In the Linux kernel, the following vulnerability has been resolved: driver core: Fix wait_for_device_probe() & deferred_probe_timeout interaction Mounting NFS rootfs was timing out when deferred_probe_timeout was non-zero [1]. This was because ip_auto_config() initcall times out waiting for the network interfaces to show up when deferred_probe_timeout was non-zero. While ip_auto_config() calls wait_for_device_probe() to make sure any currently running deferred probe work or asynchronous probe finishes, that wasn't sufficient to account for devices being deferred until deferred_probe_timeout. Commit 35a672363ab3 ("driver core: Ensure wait_for_device_probe() waits until the deferred_probe_timeout fires") tried to fix that by making sure wait_for_device_probe() waits for deferred_probe_timeout to expire before returning. However, if wait_for_device_probe() is called from the kernel_init() context: - Before deferred_probe_initcall() [2], it causes the boot process to hang due to a deadlock. - After deferred_probe_initcall() [3], it blocks kernel_init() from continuing till deferred_probe_timeout expires and beats the point of deferred_probe_timeout that's trying to wait for userspace to load modules. Neither of this is good. So revert the changes to wait_for_device_probe(). [1] - https://lore.kernel.org/lkml/TYAPR01MB45443DF63B9EF29054F7C41FD8C60@TYAPR01MB4544.jpnprd01.prod.outlook.com/ [2] - https://lore.kernel.org/lkml/[email protected]/ [3] - https://lore.kernel.org/lkml/[email protected]/

Affected

16 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.18.5-1 (bookworm)linux 5.18.5-1 (bookworm)
linuxlinux——
linuxlinux>= 35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe < 71cbce75031aed26c72c2dc8a83111d181685f1b71cbce75031aed26c72c2dc8a83111d181685f1b
linuxlinux>= 35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe < 29357883a89193863f3cc6a2c5e0b42ceb02276129357883a89193863f3cc6a2c5e0b42ceb022761
linuxlinux>= 35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe < 528229474e1cbb1b3451cb713d94aecb5f6ee264528229474e1cbb1b3451cb713d94aecb5f6ee264
linuxlinux>= 35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe < 4ad6af07efcca85369c21e4897b3020cff2c170b4ad6af07efcca85369c21e4897b3020cff2c170b
linuxlinux>= 35a672363ab3e8dfe4ebcadb4dd0b2d06bb85ebe < 5ee76c256e928455212ab759c51d198fedbe75235ee76c256e928455212ab759c51d198fedbe7523
linuxlinux_kernel——
linuxlinux_kernel>= 0 < 5.10.127-15.10.127-1
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 5.11 < 5.15.475.15.47
linuxlinux_kernel>= 5.16 < 5.17.155.17.15
linuxlinux_kernel>= 5.18 < 5.18.45.18.4
linuxlinux_kernel>= 5.7.1 < 5.10.1225.10.122

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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