CVE-2025-21736
linux: In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix possible int overflows in nilfs_fiem...
CVE-2025-21736 is fixed in 61 products on 1 platform, first by DEBIAN-CVE-2025-21736, released February 27, 2025. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0025
17th percentile
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix possible int overflows in nilfs_fiemap() Since nilfs_bmap_lookup_contig() in nilfs_fiemap() calculates its result by being prepared to go through potentially maxblocks == INT_MAX blocks, the value in n may experience an overflow caused by left shift of blkbits. While it is extremely unlikely to occur, play it safe and cast right hand expression to wider type to mitigate the issue. Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dtb-aarch64 · opensuse-leap 15.6 | 6.4.0-150600.23.47.1 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-64kb · opensuse-leap 15.6 | 6.4.0-150600.23.47.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-64kb · sles 15.6 | 6.4.0-150600.23.47.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-azure · opensuse-leap 15.6 | 6.4.0-150600.8.34.2 | SUSE-SU-2025:1177-1 | Apr 8, 2025 |
| kernel-azure · sles 15.6 | 6.4.0-150600.8.34.2 | SUSE-SU-2025:1177-1 | Apr 8, 2025 |
| kernel-coco · sles 15.6 | 6.4.0-15061.21.coco15sp6.1 | SUSE-SU-2025:01919-1 | Jun 12, 2025 |
| kernel-coco_debug · sles 15.6 | 6.4.0-15061.21.coco15sp6.1 | SUSE-SU-2025:01919-1 | Jun 12, 2025 |
| kernel-debug · opensuse-leap 15.6 | 6.4.0-150600.23.47.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-default · opensuse-leap 15.6 | 6.4.0-150600.23.47.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-default · sles 15.6 | 6.4.0-150600.23.47.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-default-base · opensuse-leap 15.6 | 6.4.0-150600.23.47.2.150600.12.20.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-default-base · sles 15.6 | 6.4.0-150600.23.47.2.150600.12.20.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-docs · opensuse-leap 15.6 | 6.4.0-150600.23.47.1 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-docs · sles 15.6 | 6.4.0-150600.23.47.1 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-kvmsmall · opensuse-leap 15.6 | 6.4.0-150600.23.47.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-livepatch-SLE15-SP6-RT_Update_10 · sles 15.6 | 1-150600.1.5.1 | SUSE-SU-2025:1178-1 | Apr 8, 2025 |
| kernel-livepatch-SLE15-SP6_Update_10 · sles 15.6 | 1-150600.13.5.1 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-obs-build · opensuse-leap 15.6 | 6.4.0-150600.23.47.1 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-obs-build · sles 15.6 | 6.4.0-150600.23.47.1 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-obs-qa · opensuse-leap 15.6 | 6.4.0-150600.23.47.1 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-rt · opensuse-leap 15.6 | 6.4.0-150600.10.34.1 | SUSE-SU-2025:1178-1 | Apr 8, 2025 |
| kernel-rt_debug · opensuse-leap 15.6 | 6.4.0-150600.10.34.1 | SUSE-SU-2025:1178-1 | Apr 8, 2025 |
| kernel-source · opensuse-leap 15.6 | 6.4.0-150600.23.47.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-source · sles 15.6 | 6.4.0-150600.23.47.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-source-azure · opensuse-leap 15.6 | 6.4.0-150600.8.34.2 | SUSE-SU-2025:1177-1 | Apr 8, 2025 |
| kernel-source-azure · sles 15.6 | 6.4.0-150600.8.34.2 | SUSE-SU-2025:1177-1 | Apr 8, 2025 |
| kernel-source-coco · sles 15.6 | 6.4.0-15061.21.coco15sp6.1 | SUSE-SU-2025:01919-1 | Jun 12, 2025 |
| kernel-source-rt · opensuse-leap 15.6 | 6.4.0-150600.10.34.1 | SUSE-SU-2025:1178-1 | Apr 8, 2025 |
| kernel-syms · opensuse-leap 15.6 | 6.4.0-150600.23.47.1 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-syms · sles 15.6 | 6.4.0-150600.23.47.1 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-syms-azure · opensuse-leap 15.6 | 6.4.0-150600.8.34.1 | SUSE-SU-2025:1177-1 | Apr 8, 2025 |
| kernel-syms-azure · sles 15.6 | 6.4.0-150600.8.34.1 | SUSE-SU-2025:1177-1 | Apr 8, 2025 |
| kernel-syms-coco · sles 15.6 | 6.4.0-15061.21.coco15sp6.1 | SUSE-SU-2025:01919-1 | Jun 12, 2025 |
| kernel-syms-rt · opensuse-leap 15.6 | 6.4.0-150600.10.34.1 | SUSE-SU-2025:1178-1 | Apr 8, 2025 |
| kernel-uek · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-core · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-core · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-devel · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-devel · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-doc · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-doc · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-tools · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek-tools · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-101.33.4.3.el9uek | ELSA-2025-20480 | Jul 17, 2025 |
| kernel-zfcpdump · opensuse-leap 15.6 | 6.4.0-150600.23.47.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| kernel-zfcpdump · sles 15.6 | 6.4.0-150600.23.47.2 | SUSE-SU-2025:1180-1 | Apr 9, 2025 |
| linux · Debian 12.15 (bookworm) | 6.1.129-1 | DEBIAN-CVE-2025-21736 | Feb 27, 2025 |
| linux · Debian 13.5 (trixie) | 6.12.15-1 | DEBIAN-CVE-2025-21736 | Feb 27, 2025 |
| linux · Debian 14 | 6.12.15-1 | DEBIAN-CVE-2025-21736 | Feb 27, 2025 |
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