In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to trigger foreground gc during f2fs_map_blocks() in lfs mode
w/ "mode=lfs" mount option, generic/299 will cause system panic as below:
------------[ cut here ]------------ kernel BUG at fs/f2fs/segment.c:2835! Call Trace: <TASK> f2fs_allocate_data_block+0x6f4/0xc50 f2fs_map_blocks+0x970/0x1550 f2fs_iomap_begin+0xb2/0x1e0 iomap_iter+0x1d6/0x430 __iomap_dio_rw+0x208/0x9a0 f2fs_file_write_iter+0x6b3/0xfa0 aio_write+0x15d/0x2e0 io_submit_one+0x55e/0xab0 __x64_sys_io_submit+0xa5/0x230 do_syscall_64+0x84/0x2f0 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0010:new_curseg+0x70f/0x720
The root cause of we run out-of-space is: in f2fs_map_blocks(), f2fs may trigger foreground gc only if it allocates any physical block, it will be a little bit later when there is multiple threads writing data w/ aio/dio/bufio method in parallel, since we always use OPU in lfs mode, so f2fs_map_blocks() does block allocations aggressively.
In order to fix this issue, let's give a chance to trigger foreground gc in prior to block allocation in f2fs_map_blocks().
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxUpgrade linux-6.1 | May 3, 2026 | May 3, 2026 |
| Ubuntu | — | Upgrade linux-image-oracle-64kUpgrade linux-image-5.15.0-1106-raspiUpgrade linux-image-oracle-6.8Upgrade linux-image-5.15.0-184-lowlatency-64kUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-oem-20.04dUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-azure-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-nvidia-64kUpgrade linux-image-generic-64kUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-kvm-5.15Upgrade linux-image-xilinxUpgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-5.15.0-1107-intel-iotgUpgrade linux-image-realtimeUpgrade linux-image-gke-64k-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-oem-20.04cUpgrade linux-image-oem-20.04bUpgrade linux-image-oem-22.04Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-raspi-6.14Upgrade linux-image-6.14.0-1017-awsUpgrade linux-image-raspi-5.15Upgrade linux-image-realtime-5.15Upgrade linux-image-virtual-6.14Upgrade linux-image-lowlatency-5.15Upgrade linux-image-intel-iotgUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-oem-20.04Upgrade linux-image-generic-lpaeUpgrade linux-image-aws-5.15Upgrade linux-image-gcp-6.14Upgrade linux-image-nvidia-tegraUpgrade linux-image-aws-64kUpgrade linux-image-5.15.0-186-fipsUpgrade linux-image-5.15.0-1112-aws-64kUpgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-gkeopUpgrade linux-image-5.15.0-186-generic-lpaeUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-5.15.0-1112-gcp-fipsUpgrade linux-image-5.15.0-1109-oracleUpgrade linux-image-azure-6.14Upgrade linux-image-nvidiaUpgrade linux-image-5.15.0-1075-xilinx-zynqmpUpgrade linux-image-oem-24.04aUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-oem-24.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-5.15.0-1117-azure-fdeUpgrade linux-image-genericUpgrade linux-image-oem-22.04dUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-nvidia-5.15Upgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-azure-fips-5.15Upgrade linux-image-gcpUpgrade linux-image-azure-5.15Upgrade linux-image-realtime-6.14Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-5.15.0-1107-nvidiaUpgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-gkeUpgrade linux-image-azure-fips-6.8Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-fips-5.15Upgrade linux-image-raspi-realtimeUpgrade linux-image-5.15.0-1112-aws-fipsUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-ibm-5.15Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-5.15.0-1064-nvidia-tegraUpgrade linux-image-6.14.0-1016-realtimeUpgrade linux-image-virtualUpgrade linux-image-oem-22.04cUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-intelUpgrade linux-image-gkeop-5.15Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-oem-6.14Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-generic-64k-6.8Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-ibm-classicUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-5.15.0-1095-gkeopUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-6.14.0-1017-aws-64kUpgrade linux-image-5.15.0-1112-gcpUpgrade linux-image-ibmUpgrade linux-image-raspiUpgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-realtime-6.8.1Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-gcp-5.15Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-gcp-64kUpgrade linux-image-fips-6.8Upgrade linux-image-fipsUpgrade linux-image-azure-fipsUpgrade linux-image-azure-fde-5.15Upgrade linux-image-azure-cvmUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-5.15.0-1106-ibmUpgrade linux-image-raspi-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-6.14.0-36-genericUpgrade linux-image-6.8.0-1046-awsUpgrade linux-image-6.14.0-1016-oemUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-5.15.0-1107-nvidia-lowlatencyUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-5.15.0-1104-kvmUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-5.15.0-1104-intel-iot-realtimeUpgrade linux-image-aws-6.8Upgrade linux-image-awsUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-oracleUpgrade linux-image-oem-22.04bUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-azureUpgrade linux-image-aws-lts-24.04Upgrade linux-image-generic-5.15Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-aws-fipsUpgrade linux-image-6.14.0-1020-gcp-64kUpgrade linux-image-5.15.0-1053-nvidia-tegra-igx-rtUpgrade linux-image-xilinx-6.8Upgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.14.0-1018-raspiUpgrade linux-image-6.14.0-1020-gcpUpgrade linux-image-5.15.0-186-genericUpgrade linux-image-5.15.0-186-generic-64kUpgrade linux-image-6.14.0-1017-oracleUpgrade linux-image-6.14.0-1017-oracle-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-virtual-6.8Upgrade linux-image-azure-fdeUpgrade linux-image-gkeop-6.8Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-6.14.0-1017-azureUpgrade linux-image-5.15.0-1111-realtimeUpgrade linux-image-5.15.0-1117-azureUpgrade linux-image-kvmUpgrade linux-image-generic-6.8Upgrade linux-image-5.15.0-1053-nvidia-tegra-igxUpgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-raspi-nolpaeUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1108-gkeUpgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-gcp-fipsUpgrade linux-image-virtual-5.15Upgrade linux-image-ibm-6.8Upgrade linux-image-gke-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-5.15.0-184-lowlatencyUpgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-generic-64k-6.14Upgrade linux-image-5.15.0-1064-nvidia-tegra-rtUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-gke-5.15Upgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-6.14.0-36-generic-64kUpgrade linux-image-oracle-5.15Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-oracle-6.14Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-generic-64k-5.15Upgrade linux-image-generic-6.14Upgrade linux-image-aws-64k-6.14Upgrade linux-image-aws-64k-5.15Upgrade linux-image-aws-6.14Upgrade linux-image-oem-22.04aUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-5.15.0-1112-awsUpgrade linux-image-aws-fips-5.15Upgrade linux-image-gcp-64k-6.14Upgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-5.15.0-1117-azure-fips | Nov 25, 2025 | Nov 21, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Aug 22, 2025 |
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