Description
In __f2fs_setxattr in fs/f2fs/xattr.c in the Linux kernel through 5.15.11, there is an out-of-bounds memory access when an inode has an invalid last xattr entry.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 5.15.15-1 | — |
| Debian 13 | linux | 5.15.15-1 | — |
| Debian 12 | linux | 5.15.15-1 | — |
| Debian 11 | linux | 5.10.92-1 | DSA-5050-1 |
| Debian 10 | linux | 4.19.232-1 | DSA-5096-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 9 | linux-4.19 | 4.19.232-1~deb9u1 | DLA-2941-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-realtime +1 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-105.119 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1069.73 | — |
| Ubuntu 20.04 LTS | linux-aws-5.13 | 5.13.0-1019.21~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1073.76 | — |
| Ubuntu 20.04 LTS | linux-azure-5.13 | 5.13.0-1021.24~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1032.35 | USN-5377-1 |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1068.72 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.13 | 5.13.0-1021.25~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke | 5.4.0-1066.69 | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1037.38 | — |
| Ubuntu 20.04 LTS | linux-hwe-5.13 | 5.13.0-37.42~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1018.20 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1059.62 | — |
| Ubuntu 20.04 LTS | linux-oem-5.14 | 5.14.0-1022.24 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1067.72 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.13 | 5.13.0-1025.30~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1056.63 | — |
| Ubuntu 20.04 LTS | linux-riscv +17 | No fix yet | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-169.177 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1121.129 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1069.73~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1131.144 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1073.76~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-dell300x | 4.15.0-1035.40 | — |
| Ubuntu 18.04 LTS | linux-gcp +12 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1116.130 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1068.72~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gke-5.4 | 5.4.0-1066.69~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gkeop-5.4 | 5.4.0-1037.38~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-105.119~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1018.20~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1107.109 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1087.95 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1067.72~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1056.63~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1103.110 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1120.129 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1069.73+fips2 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1073.76+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1046.52 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1067.71~20.04.1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2061.63 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2043.47 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1078.87 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2026.28 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1072.78 | — |
| Ubuntu Pro 16.04 LTS | linux | 4.4.0-222.255 | USN-5343-1 |
| Ubuntu Pro 16.04 LTS | linux-aws | 4.4.0-1138.152 | USN-5343-1 |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1120.128~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1131.144~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1116.130~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-169.177~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-kvm | 4.4.0-1103.112 | USN-5343-1 |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1087.95~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1102.107 | USN-5343-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1131.144~14.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-222.255~14.04.1 | USN-5343-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.18.1-1 | — |
Advisories 5
- USN-5377-1 linux-bluefield vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5343-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- DSA-5050-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5096-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2941-1 linux-4.19 - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugzilla.kernel.org/show_bug.cgi?id=215235
- https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=dev&id=5598b24efaf4892741c798b425d543e4bed357a1
- [oss-security] 20211224 CVE-2021-45469: Linux kernel: an out-of-bounds memory access in fs/f2fs/xattr.c __f2fs_setxattr mailing-list
- FEDORA-2021-a7a558062e vendor-advisory
- FEDORA-2021-c387682aa1 vendor-advisory
- https://security.netapp.com/advisory/ntap-20220114-0003/
- DSA-5050 vendor-advisory
- [debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update mailing-list
- DSA-5096 vendor-advisory