CVE-2022-49524
In the Linux kernel, the following vulnerability has been resolved: media: pci: cx23885: Fix the error handling in cx23885_initdev() When the driver fails to call the dma_set_mask(), the driver will get the following splat: [ 55.853884] BUG: KASAN:…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: media: pci: cx23885: Fix the error handling in cx23885_initdev() When the driver fails to call the dma_set_mask(), the driver will get the following splat: [ 55.853884] BUG: KASAN: use-after-free in __process_removed_driver+0x3c/0x240 [ 55.854486] Read of size 8 at addr ffff88810de60408 by task modprobe/590 [ 55.856822] Call Trace: [ 55.860327] __process_removed_driver+0x3c/0x240 [ 55.861347] bus_for_each_dev+0x102/0x160 [ 55.861681] i2c_del_driver+0x2f/0x50 This is because the driver has initialized the i2c related resources in cx23885_dev_setup() but not released them in error handling, fix this bug by modifying the error path that jumps after failing to call the dma_set_mask().
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.26% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/453514a874c78df1e7804e6e3aaa60c8d8deb6a8Patch
- https://git.kernel.org/stable/c/6041d1a0365baa729b6adfb6ed5386d9388018dbPatch
- https://git.kernel.org/stable/c/7b9978e1c94e569d65a0e7e719abb9340f5db4a0Patch
- https://git.kernel.org/stable/c/86bd6a579c6c60547706cabf299cd2c9feab3332Patch
- https://git.kernel.org/stable/c/98106f100f50c487469903b9cf6d966785fc9cc3Patch
- https://git.kernel.org/stable/c/ca17e7a532d1a55466cc007b3f4d319541a27493Patch
- https://git.kernel.org/stable/c/e8123311cf06d7dae71e8c5fe78e0510d20cd30bPatch
- https://git.kernel.org/stable/c/fa636e9ee4442215cd9a2e079cd5a8e1fe0cb8baPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.