CVE-2022-48635
Fixed in a distro release EPSS <1%CVSS 6.2
In the Linux kernel, the following vulnerability has been resolved: fsdax: Fix infinite loop in dax_iomap_rw() I got an infinite loop and a WARNING report when executing a tail command in virtiofs. WARNING: CPU: 10 PID: 964 at fs/iomap/iter.c:34 iomap_iter+0x3a2/0x3d0 Modules linked in: CPU: 10 PID: 964 Comm: tail Not tainted 5.19.0-rc7 Call Trace: <TASK> dax_iomap_rw+0xea/0x620 ? __this_cpu_preempt_check+0x13/0x20 fuse_dax_read_iter+0x47/0x80 fuse_file_read_iter+0xae/0xd0 new_sync_read+0xfe/0x180 ? 0xffffffff81000000 vfs_read+0x14d/0x1a0 ksys_read+0x6d/0xf0 __x64_sys_read+0x1a/0x20 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The tail command will call read() with a count of 0. In this case, iomap_iter() will report this WARNING, and always return 1 which casuing the infinite loop in dax_iomap_rw(). Fixing by checking count whether is 0 in dax_iomap_rw().
Products: Linux, linux_kernel
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | linux | 6.0.2-1 |
| Debian 13 | linux | 6.0.2-1 |
| Debian 14 | linux | 6.0.2-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 18.04 LTS | linux-aws-5.0 | no fix |
| Ubuntu 18.04 LTS | linux-aws-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-azure | no fix |
| Ubuntu 18.04 LTS | linux-azure-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-azure-edge | no fix |
| Ubuntu 18.04 LTS | linux-gcp | no fix |
| Ubuntu 18.04 LTS | linux-gcp-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-gke-4.15 | no fix |
| Ubuntu 18.04 LTS | linux-gke-5.4 | no fix |
| Ubuntu 18.04 LTS | linux-gkeop-5.4 | no fix |
| Ubuntu 18.04 LTS | linux-hwe | no fix |
| Ubuntu 18.04 LTS | linux-oem | no fix |
| Ubuntu 18.04 LTS | linux-oracle-5.0 | no fix |
| Ubuntu 18.04 LTS | linux-oracle-5.3 | no fix |
| Ubuntu 20.04 LTS | linux-aws-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-aws-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1027.31~20.04.1 |
| Ubuntu 20.04 LTS | linux-aws-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-azure-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-azure-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1030.37~20.04.1 |
| Ubuntu 20.04 LTS | linux-azure-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-azure-fde | no fix |
| Ubuntu 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1030.37~20.04.1.1 |
| Ubuntu 20.04 LTS | linux-gcp-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-gcp-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1027.34~20.04.1 |
| Ubuntu 20.04 LTS | linux-gcp-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-gke | no fix |
| Ubuntu 20.04 LTS | linux-gke-5.15 | no fix |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1012.16~20.04.1 |
| Ubuntu 20.04 LTS | linux-hwe-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-hwe-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-hwe-5.15 | 5.15.0-57.63~20.04.1 |
| Ubuntu 20.04 LTS | linux-hwe-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-intel-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1023.28~20.04.1 |
| Ubuntu 20.04 LTS | linux-lowlatency-hwe-5.15 | 5.15.0-58.64~20.04.1 |
| Ubuntu 20.04 LTS | linux-oem-5.10 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.14 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.6 | no fix |
| Ubuntu 20.04 LTS | linux-oracle-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-oracle-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1027.33~20.04.1 |
| Ubuntu 20.04 LTS | linux-oracle-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-raspi2 | no fix |
| Ubuntu 20.04 LTS | linux-riscv | no fix |
| Ubuntu 20.04 LTS | linux-riscv-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1027.31~20.04.1 |
| Ubuntu 20.04 LTS | linux-riscv-5.8 | no fix |
| Ubuntu 22.04 LTS | linux | 5.15.0-57.63 |
| Ubuntu 22.04 LTS | linux-allwinner-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1027.31 |
| Ubuntu 22.04 LTS | linux-aws-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-aws-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1030.37 |
| Ubuntu 22.04 LTS | linux-azure-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-azure-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1030.37.1 |
| Ubuntu 22.04 LTS | linux-azure-fde-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-azure-fde-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1026.33 |
| Ubuntu 22.04 LTS | linux-gcp-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-gcp-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1024.29 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1012.16 |
| Ubuntu 22.04 LTS | linux-hwe-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-hwe-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1022.25 |
| Ubuntu 22.04 LTS | linux-intel-iot-realtime | no fix |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1023.28 |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1025.30 |
| Ubuntu 22.04 LTS | linux-lowlatency | 5.15.0-57.63 |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1015.15 |
| Ubuntu 22.04 LTS | linux-nvidia-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-oem-5.17 | no fix |
| Ubuntu 22.04 LTS | linux-oem-6.0 | no fix |
| Ubuntu 22.04 LTS | linux-oem-6.1 | no fix |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1026.32 |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1022.24 |
| Ubuntu 22.04 LTS | linux-realtime | no fix |
| Ubuntu 22.04 LTS | linux-riscv | no fix |
| Ubuntu 22.04 LTS | linux-riscv-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-starfive-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-starfive-6.2 | no fix |
| Ubuntu 24.04 LTS | linux-raspi-realtime | no fix |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1029.32 |