Unrated severityNVD Advisory· Published Aug 17, 2024· Updated Nov 3, 2025
exfat: fix potential deadlock on __exfat_get_dentry_set
CVE-2024-42315
Description
In the Linux kernel, the following vulnerability has been resolved:
exfat: fix potential deadlock on __exfat_get_dentry_set
When accessing a file with more entries than ES_MAX_ENTRY_NUM, the bh-array is allocated in __exfat_get_entry_set. The problem is that the bh-array is allocated with GFP_KERNEL. It does not make sense. In the following cases, a deadlock for sbi->s_lock between the two processes may occur.
CPU0 CPU1 ---- ---- kswapd balance_pgdat lock(fs_reclaim) exfat_iterate lock(&sbi->s_lock) exfat_readdir exfat_get_uniname_from_ext_entry exfat_get_dentry_set __exfat_get_dentry_set kmalloc_array ... lock(fs_reclaim) ... evict exfat_evict_inode lock(&sbi->s_lock)
To fix this, let's allocate bh-array with GFP_NOFS.
Affected products
98- osv-coords97 versionspkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%20Micro%205.5pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%20Micro%205.5pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%20Micro%205.5pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-livepatch-MICRO-6-0-RT_Update_2&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-livepatch-MICRO-6-0_Update_2&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-livepatch-SLE15-SP5-RT_Update_19&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_19&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_4&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6
< 5.14.21-150500.55.80.1+ 96 more
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 6.4.0-150600.23.22.1.150600.12.8.3
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.13.67.1
- (no CPE)range: < 6.4.0-150600.10.8.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 6.4.0-150600.23.22.1.150600.12.8.3
- (no CPE)range: < 6.4.0-17.1.1.51
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 1-1.1
- (no CPE)range: < 1-1.1
- (no CPE)range: < 1-150500.11.3.2
- (no CPE)range: < 1-150500.11.3.2
- (no CPE)range: < 1-150600.1.3.2
- (no CPE)range: < 1-150600.13.3.3
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-10.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-10.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.13.67.1
- (no CPE)range: < 6.4.0-150600.10.8.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
6- git.kernel.org/stable/c/1d1970493c289e3f44b9ec847ed26a5dbdf56a62mitre
- git.kernel.org/stable/c/632fb232b6bbf8277edcbe9ecd4b4d98ecb122ebmitre
- git.kernel.org/stable/c/89fc548767a2155231128cb98726d6d2ea1256c9mitre
- git.kernel.org/stable/c/a7ac198f8dba791e3144c4da48a5a9b95773ee4bmitre
- git.kernel.org/stable/c/c052f775ee6ccacd3c97e4cf41a2a657e63d4259mitre
- git.kernel.org/stable/c/cd1c7858641384191ff7033fb1fc65dfcd559c6fmitre
News mentions
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