cbcvebase.
CVE-2024-45010
published 2024-09-11

CVE-2024-45010: In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only mark 'subflow' endp as available Adding the following warning ..…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
12.7th percentile
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only mark 'subflow' endp as available Adding the following warning ... WARN_ON_ONCE(msk->pm.local_addr_used == 0) ... before decrementing the local_addr_used counter helped to find a bug when running the "remove single address" subtest from the mptcp_join.sh selftests. Removing a 'signal' endpoint will trigger the removal of all subflows linked to this endpoint via mptcp_pm_nl_rm_addr_or_subflow() with rm_type == MPTCP_MIB_RMSUBFLOW. This will decrement the local_addr_used counter, which is wrong in this case because this counter is linked to 'subflow' endpoints, and here it is a 'signal' endpoint that is being removed. Now, the counter is decremented, only if the ID is being used outside of mptcp_pm_nl_rm_addr_or_subflow(), only for 'subflow' endpoints, and if the ID is not 0 -- local_addr_used is not taking into account these ones. This marking of the ID as being available, and the decrement is done no matter if a subflow using this ID is currently available, because the subflow could have been closed before.

Affected

22 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.112-1 (bookworm)linux 6.1.112-1 (bookworm)
debianlinux-6.1< linux 6.1.112-1 (bookworm)linux 6.1.112-1 (bookworm)
linuxlinux
linuxlinux>= 06faa22710342bca5e9c249634199c650799fce6 < 7fdc870d08960961408a44c569f20f50940e7d4f7fdc870d08960961408a44c569f20f50940e7d4f
linuxlinux>= 06faa22710342bca5e9c249634199c650799fce6 < 43cf912b0b0fc7b4fd12cbc735d1f5afb8e1322d43cf912b0b0fc7b4fd12cbc735d1f5afb8e1322d
linuxlinux>= 06faa22710342bca5e9c249634199c650799fce6 < 9849cfc67383ceb167155186f8f8fe8a896b60b39849cfc67383ceb167155186f8f8fe8a896b60b3
linuxlinux>= 06faa22710342bca5e9c249634199c650799fce6 < 322ea3778965da72862cca2a0c50253aacf65fe6322ea3778965da72862cca2a0c50253aacf65fe6
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.112-16.1.112-1
linuxlinux_kernel>= 0 < 6.10.7-16.10.7-1
linuxlinux_kernel>= 0 < 6.10.7-16.10.7-1
linuxlinux_kernel>= 0 < 6.8.0-50.516.8.0-50.51
linuxlinux_kernel>= 5.13 < 6.1.1086.1.108
linuxlinux_kernel>= 6.2 < 6.6.486.6.48
linuxlinux_kernel>= 6.7 < 6.10.76.10.7
msrcazl3_kernel_6.6.47.1-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.51.1-1_on_azure_linux_3.0
msrcazure_linux_3.0_arm
msrcazure_linux_3.0_x64
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

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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