High severity7.8NVD Advisory· Published Oct 1, 2025· Updated Aug 4, 2026
CVE-2023-53506
CVE-2023-53506
Description
In the Linux kernel, the following vulnerability has been resolved:
udf: Do not bother merging very long extents
When merging very long extents we try to push as much length as possible to the first extent. However this is unnecessarily complicated and not really worth the trouble. Furthermore there was a bug in the logic resulting in corrupting extents in the file as syzbot reproducer shows. So just don't bother with the merging of extents that are too long together.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
100(expand)+ 7 more
- (no CPE)
- (no CPE)range: 2.6.12
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.12.1,<4.14.308
- cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*
- osv-coords92 versionspkg:linux/kernelpkg:rpm/suse/kernel-livepatch-SLE15-SP4_Update_45&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/kernel-default-base&distro=SUSE%20Manager%20Proxy%20LTS%204.3pkg:rpm/suse/kernel-default&distro=SUSE%20Manager%20Server%20LTS%204.3pkg:rpm/suse/kernel-default-base&distro=SUSE%20Manager%20Server%20LTS%204.3pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Manager%20Server%20LTS%204.3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP4pkg:rpm/suse/kernel-source&distro=SUSE%20Manager%20Server%20LTS%204.3pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Manager%20Proxy%20LTS%204.3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_31&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/kernel-default&distro=SUSE%20Manager%20Proxy%20LTS%204.3pkg:rpm/suse/kernel-syms&distro=SUSE%20Manager%20Proxy%20LTS%204.3pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_73&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/kernel-syms&distro=SUSE%20Manager%20Server%20LTS%204.3pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS
>= 2.6.12, < 4.14.308+ 91 more
- (no CPE)range: >= 2.6.12, < 4.14.308
- (no CPE)range: < 1-150400.9.3.1
- (no CPE)range: < 5.14.21-150400.24.179.1.150400.24.92.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1.150400.24.92.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1.150400.24.92.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1.150400.24.92.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1.150500.6.59.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150400.24.179.1.150400.24.92.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.15.133.1
- (no CPE)range: < 5.14.21-150400.15.133.1
- (no CPE)range: < 5.14.21-150400.15.133.1
- (no CPE)range: < 5.14.21-150500.13.109.1
- (no CPE)range: < 5.14.21-150500.13.109.1
- (no CPE)range: < 5.14.21-150400.15.133.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1.150500.6.59.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1.150500.6.59.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 5.14.21-150500.55.124.1.150500.6.59.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 1-8.3.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1.150400.24.92.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 5.14.21-150500.55.124.1
- (no CPE)range: < 5.14.21-150500.55.124.1.150500.6.59.1
- (no CPE)range: < 5.14.21-150400.24.179.1.150400.24.92.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1
- (no CPE)range: < 5.14.21-150400.24.179.1.150400.24.92.1
- (no CPE)range: < 5.14.21-150400.24.179.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/3d20e3b768aff32112bdce8d3219d923ae75f9f1nvdPatch
- git.kernel.org/stable/c/53cafe1d6d8ef9f93318e5bfccc0d24f27d41cednvdPatch
- git.kernel.org/stable/c/5d029799d381a9ee06209a222cae75f04c5d5304nvdPatch
- git.kernel.org/stable/c/7a965da79f2d22601f329cbfce588386b0847544nvdPatch
- git.kernel.org/stable/c/965982feb333aefa9256c0fe188b5f1b958aef63nvdPatch
- git.kernel.org/stable/c/9a8d602f0723586e668bae7e65c832ceb9bcc8bcnvdPatch
- git.kernel.org/stable/c/adac9ac6d2e04ea0782b91a00ba10706002f3ec4nvdPatch
- git.kernel.org/stable/c/d52252a1de4cf96a34f722b0cd8902d8ff78eb57nvdPatch
News mentions
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