cbcvebase.
CVE-2024-36883
published 2024-05-30

CVE-2024-36883: In the Linux kernel, the following vulnerability has been resolved: net: fix out-of-bounds access in ops_init net_alloc_generic is called by net_alloc, which…

PriorityP430high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.31%
23.1th percentile
In the Linux kernel, the following vulnerability has been resolved: net: fix out-of-bounds access in ops_init net_alloc_generic is called by net_alloc, which is called without any locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It is read twice, first to allocate an array, then to set s.len, which is later used to limit the bounds of the array access. It is possible that the array is allocated and another thread is registering a new pernet ops, increments max_gen_ptrs, which is then used to set s.len with a larger than allocated length for the variable array. Fix it by reading max_gen_ptrs only once in net_alloc_generic. If max_gen_ptrs is later incremented, it will be caught in net_assign_generic.

Affected

33 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.94-1 (bookworm)linux 6.1.94-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux
linuxlinux>= 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < 3cdc34d76c4f777579e28ad373979d36c030cfd33cdc34d76c4f777579e28ad373979d36c030cfd3
linuxlinux>= 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < 7b0e64583eab8c1d896b47e5dd0bf2e7d86ec41f7b0e64583eab8c1d896b47e5dd0bf2e7d86ec41f
linuxlinux>= 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < 0c3248bc708a7797be573214065cf908ff1f54c70c3248bc708a7797be573214065cf908ff1f54c7
linuxlinux>= 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < 9518b79bfd2fbf99fa9b7e8e36bcb1825e7ba0309518b79bfd2fbf99fa9b7e8e36bcb1825e7ba030
linuxlinux>= 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < 2d60ff5874aefd006717ca5e22ac1e25eac29c422d60ff5874aefd006717ca5e22ac1e25eac29c42
linuxlinux>= 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < b6dbfd5bcc267a95a0bf1bf96af46243f96ec6cdb6dbfd5bcc267a95a0bf1bf96af46243f96ec6cd
linuxlinux>= 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < f4f94587e1bf87cb40ec33955a9d90148dd026abf4f94587e1bf87cb40ec33955a9d90148dd026ab
linuxlinux>= 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < a26ff37e624d12e28077e5b24d2b264f62764ad6a26ff37e624d12e28077e5b24d2b264f62764ad6
linuxlinux>= 3.0.19 < 3.13.1
linuxlinux>= 3.2.3 < 3.33.3
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.218-15.10.218-1
linuxlinux_kernel>= 0 < 6.1.94-16.1.94-1
linuxlinux_kernel>= 0 < 6.8.11-16.8.11-1
linuxlinux_kernel>= 0 < 6.8.11-16.8.11-1
linuxlinux_kernel>= 0 < 5.4.0-192.2125.4.0-192.212
linuxlinux_kernel>= 0 < 5.15.0-118.1285.15.0-118.128
linuxlinux_kernel>= 0 < 6.8.0-40.406.8.0-40.40
linuxlinux_kernel>= 3.0.19 < 3.13.1

CVSS provenance

nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian7.1HIGH
vendor_redhat7.1HIGH
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