cbcvebase.
CVE-2024-35887
published 2024-05-19

CVE-2024-35887: In the Linux kernel, the following vulnerability has been resolved: ax25: fix use-after-free bugs caused by ax25_ds_del_timer When the ax25 device is…

PriorityP337high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.23%
14.2th percentile
In the Linux kernel, the following vulnerability has been resolved: ax25: fix use-after-free bugs caused by ax25_ds_del_timer When the ax25 device is detaching, the ax25_dev_device_down() calls ax25_ds_del_timer() to cleanup the slave_timer. When the timer handler is running, the ax25_ds_del_timer() that calls del_timer() in it will return directly. As a result, the use-after-free bugs could happen, one of the scenarios is shown below: (Thread 1) | (Thread 2) | ax25_ds_timeout() ax25_dev_device_down() | ax25_ds_del_timer() | del_timer() | ax25_dev_put() //FREE | | ax25_dev-> //USE In order to mitigate bugs, when the device is detaching, use timer_shutdown_sync() to stop the timer.

Affected

16 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.8.9-1 (forky)linux 6.8.9-1 (forky)
linuxlinux
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 74204bf9050f7627aead9875fe4e07ba125cb19b74204bf9050f7627aead9875fe4e07ba125cb19b
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c6a368f9c7af4c14b14d390c2543af8001c9bdb9c6a368f9c7af4c14b14d390c2543af8001c9bdb9
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fd819ad3ecf6f3c232a06b27423ce9ed8c20da89fd819ad3ecf6f3c232a06b27423ce9ed8c20da89
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.8.9-16.8.9-1
linuxlinux_kernel>= 0 < 6.8.9-16.8.9-1
linuxlinux_kernel>= 0 < 5.4.0-208.2285.4.0-208.228
linuxlinux_kernel>= 0 < 5.15.0-133.1445.15.0-133.144
linuxlinux_kernel>= 0 < 6.8.0-38.386.8.0-38.38
linuxlinux_kernel>= 2.6.12 < 6.6.266.6.26
linuxlinux_kernel>= 6.7 < 6.8.56.8.5
msrccbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.202.1-1_on_cbl_mariner_2.0

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
vendor_msrc6.7MEDIUM
vendor_oracle4.3MEDIUM
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