Description
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: tcmu: Fix possible page UAF
tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not
take refcount properly and just returns page pointer. When
tcmu_try_get_data_page() returns, the returned page may have been freed by
tcmu_blocks_release().
We need to get_page() under cmdr_lock to avoid concurrent
tcmu_blocks_release().
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 4.12 | 4.14.276 |
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 | 5.17.6-1 | — |
| Debian 13 | linux | 5.17.6-1 | — |
| Debian 12 | linux | 5.17.6-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-37.39 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1011.14 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1010.12 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1008.12 | — |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1008.10 | — |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1007.8 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1008.11 | — |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1010.11 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1009.12 | — |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1011.13 | — |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-122.138 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1081.88 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1086.91 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1008.9~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1042.47 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1084.92 | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 | 5.15.0-41.44~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1029.33 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1008.11~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1004.6 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1071.76 | — |
| Ubuntu 20.04 LTS | linux-lowlatency-hwe-5.15 | 5.15.0-42.45~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1079.87 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1066.76 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-189.200 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1137.148 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1081.88~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1146.161 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1086.91~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1131.147 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1084.92~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-122.138~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1029.33~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1123.128 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1102.113 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1079.87~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1066.76~18.04.1 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1014.14 | — |
| 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-updates 20.04 LTS | linux-aws-fips +1 | 5.4.0-1081.88+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1086.91+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1057.65 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2076.81 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2057.63 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1094.105 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2041.46 | — |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1137.148~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1146.161~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1131.147~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-189.200~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1102.113~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1146.161~14.04.1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.100.1 | SUSE-SU-2025:1241-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.100.1.150500.6.47.1 | SUSE-SU-2025:1241-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.161.1 | SUSE-SU-2025:1195-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.161.1.150400.24.80.1 | SUSE-SU-2025:1195-1 |
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.201.1 | SUSE-SU-2025:1263-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.201.1.150300.18.120.1 | SUSE-SU-2025:1263-1 |
| SLES 12 SP5 | kernel-syms +2 | 4.12.14-122.255.1 | SUSE-SU-2025:1293-1 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | kernel-default-base | 5.14.21-150500.55.100.1.150500.6.47.1 | SUSE-SU-2025:1241-1 |
| SLES for SAP 15 SP5 | kernel-docs +4 | 5.14.21-150500.55.100.1 | SUSE-SU-2025:1241-1 |
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.161.1.150400.24.80.1 | SUSE-SU-2025:1195-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.161.1 | SUSE-SU-2025:1195-1 |
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.201.1.150300.18.120.1 | SUSE-SU-2025:1263-1 |
| SLES for SAP 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.201.1 | SUSE-SU-2025:1263-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.100.1.150500.6.47.1 | SUSE-SU-2025:1241-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.91.1 | SUSE-SU-2025:1176-1 |
| SLE Micro 5.5 | kernel-source +1 | 5.14.21-150500.55.100.1 | SUSE-SU-2025:1241-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.161.1 | SUSE-SU-2025:1195-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.161.1.150400.24.80.1 | SUSE-SU-2025:1195-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.115.1 | SUSE-SU-2025:1183-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.161.1 | SUSE-SU-2025:1195-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.161.1.150400.24.80.1 | SUSE-SU-2025:1195-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.115.1 | SUSE-SU-2025:1183-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.201.1 | SUSE-SU-2025:1263-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.201.1.150300.18.120.1 | SUSE-SU-2025:1263-1 |
| SLE Micro 5.2 | kernel-rt +1 | 5.3.18-150300.205.1 | SUSE-SU-2025:1194-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.201.1 | SUSE-SU-2025:1263-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.201.1.150300.18.120.1 | SUSE-SU-2025:1263-1 |
| SLE Micro 5.1 | kernel-rt +1 | 5.3.18-150300.205.1 | SUSE-SU-2025:1194-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.100.1 | SUSE-SU-2025:1241-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_17 | 16-150500.2.1 | SUSE-SU-2025:03190-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_19 +1 | 14-150500.2.1 | SUSE-SU-2025:03191-1, SUSE-SU-2025:03186-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_21 | 10-150500.2.1 | SUSE-SU-2025:03185-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_23 +1 | 6-150500.2.1 | SUSE-SU-2025:03208-1, SUSE-SU-2025:03194-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_25 | 1-150500.11.3.1 | SUSE-SU-2025:1241-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.161.1 | SUSE-SU-2025:1195-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_29 | 16-150400.2.1 | SUSE-SU-2025:03175-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_31 +1 | 14-150400.2.1 | SUSE-SU-2025:03181-1, SUSE-SU-2025:03156-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_33 | 13-150400.2.1 | SUSE-SU-2025:03180-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_36 +1 | 6-150400.2.1 | SUSE-SU-2025:03165-1, SUSE-SU-2025:03160-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_39 | 1-150400.9.3.1 | SUSE-SU-2025:1195-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.201.1 | SUSE-SU-2025:1263-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_47 | 17-150300.2.1 | SUSE-SU-2025:03130-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_49 | 15-150300.2.1 | SUSE-SU-2025:03124-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_50 | 13-150300.2.1 | SUSE-SU-2025:03133-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_51 | 11-150300.2.1 | SUSE-SU-2025:03126-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_54 | 7-150300.2.1 | SUSE-SU-2025:03129-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_56 | 1-150300.7.3.1 | SUSE-SU-2025:1263-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.255.1 | SUSE-SU-2025:1293-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_60 | 15-2.1 | SUSE-SU-2025:03135-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_61 | 18-4.1 | SUSE-SU-2025:4123-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_62 | 14-2.1 | SUSE-SU-2025:03138-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_67 | 1-8.5.1 | SUSE-SU-2025:1293-1 |
| SLE HPC 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.100.1 | SUSE-SU-2025:1241-1 |
| SLE HPC 15 SP5 | kernel-default-base | 5.14.21-150500.55.100.1.150500.6.47.1 | SUSE-SU-2025:1241-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.161.1 | SUSE-SU-2025:1195-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.161.1.150400.24.80.1 | SUSE-SU-2025:1195-1 |
| SLE HPC 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.201.1 | SUSE-SU-2025:1263-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.201.1.150300.18.120.1 | SUSE-SU-2025:1263-1 |
| SUSE Manager Server 4.3 | kernel-default-base | 5.14.21-150400.24.161.1.150400.24.80.1 | SUSE-SU-2025:1195-1 |
| SUSE Manager Server 4.3 | kernel-syms +3 | 5.14.21-150400.24.161.1 | SUSE-SU-2025:1195-1 |
| SUSE Manager Proxy 4.3 | kernel-default-base | 5.14.21-150400.24.161.1.150400.24.80.1 | SUSE-SU-2025:1195-1 |
| SUSE Manager Proxy 4.3 | kernel-syms +2 | 5.14.21-150400.24.161.1 | SUSE-SU-2025:1195-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +6 | 5.3.18-150300.59.201.1 | SUSE-SU-2025:1263-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.201.1.150300.18.120.1 | SUSE-SU-2025:1263-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | kernel-livepatch-4.14.276-211.499 | 1.0-0.amzn2 | ALAS2-2024-2569 |
| Amazon Linux 2 | perf +8 | 4.14.276-211.499.amzn2 | ALAS2-2024-2569 |
Advisories 28
- SUSE-SU-2025:03208-1 Security update for the Linux Kernel (Live Patch 23 for SLE 15 SP5) SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03135-1 Security update for the Linux Kernel (Live Patch 60 for SLE 12 SP5) SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03138-1 Security update for the Linux Kernel (Live Patch 62 for SLE 12 SP5) SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03175-1 Security update for the Linux Kernel (Live Patch 29 for SLE 15 SP4) SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03165-1 Security update for the Linux Kernel (Live Patch 37 for SLE 15 SP4) SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03133-1 Security update for the Linux Kernel (Live Patch 50 for SLE 15 SP3) SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03129-1 Security update for the Linux Kernel (Live Patch 54 for SLE 15 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03130-1 Security update for the Linux Kernel (Live Patch 47 for SLE 15 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03160-1 Security update for the Linux Kernel (Live Patch 36 for SLE 15 SP4) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03190-1 Security update for the Linux Kernel (Live Patch 17 for SLE 15 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03194-1 Security update for the Linux Kernel (Live Patch 24 for SLE 15 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03124-1 Security update for the Linux Kernel (Live Patch 49 for SLE 15 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1194-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03156-1 Security update for the Linux Kernel (Live Patch 31 for SLE 15 SP4) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1176-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1241-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03180-1 Security update for the Linux Kernel (Live Patch 33 for SLE 15 SP4) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03186-1 Security update for the Linux Kernel (Live Patch 19 for SLE 15 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1183-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1195-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03185-1 Security update for the Linux Kernel (Live Patch 21 for SLE 15 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1293-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03126-1 Security update for the Linux Kernel (Live Patch 51 for SLE 15 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03181-1 Security update for the Linux Kernel (Live Patch 32 for SLE 15 SP4) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4123-1 Security update for the Linux Kernel (Live Patch 61 for SUSE Linux Enterprise 12 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03191-1 Security update for the Linux Kernel (Live Patch 20 for SLE 15 SP5) SUSE / openSUSE Security Updates · Sep 12, 2025
- ALAS2-2024-2569 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 19, 2025
- SUSE-SU-2025:1263-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Apr 16, 2025
References
- https://git.kernel.org/stable/c/d7c5d79e50be6e06b669141e3db1f977a0dd4e8e
- https://git.kernel.org/stable/c/e3e0e067d5b34e4a68e3cc55f8eebc413f56f8ed
- https://git.kernel.org/stable/c/fb7a5115422fbd6a4d505e8844f1ef5529f10489
- https://git.kernel.org/stable/c/aec36b98a1bbaa84bfd8299a306e4c12314af626
- https://git.kernel.org/stable/c/b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322
- https://git.kernel.org/stable/c/a9564d84ed9f6ee71017d062d0d2182154294a4b
- https://git.kernel.org/stable/c/a6968f7a367f128d120447360734344d5a3d5336