Unrated severityNVD Advisory· Published May 19, 2024· Updated May 4, 2025

io_uring/kbuf: hold io_buffer_list reference over mmap

CVE-2024-35880

Description

In the Linux kernel, the following vulnerability has been resolved:

If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the io_uring lock. Rely on the fact that we can lookup the buffer list under RCU now and grab a reference to it, preventing it from being unregistered until we're done with it. The lookup returns the io_buffer_list directly with it referenced.

Affected products

osv-coords47 versions
pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6
< 6.4.0-150600.23.14.1+ 46 more
- (no CPE)range: < 6.4.0-150600.23.14.1
- (no CPE)range: < 6.4.0-150600.23.14.1
- (no CPE)range: < 6.4.0-150600.8.8.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.2.150600.12.4.3
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 6.4.0-150600.8.8.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 6.4.0-150600.8.8.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.1
- (no CPE)range: < 6.4.0-150600.8.8.2
- (no CPE)range: < 6.4.0-150600.23.14.2.150600.12.4.3
- (no CPE)range: < 6.4.0-17.1.1.51
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-18.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-18.1
- (no CPE)range: < 1-150600.1.5.1
- (no CPE)range: < 1-150600.13.3.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 6.4.0-9.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 6.4.0-150600.8.8.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-18.1
- (no CPE)range: < 6.4.0-9.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 6.4.0-150600.8.8.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 6.4.0-150600.23.14.2
Linux/Linuxcpe-rescue
Range: 6.7

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

News mentions

No linked articles in our index yet.

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