# CVE-2022-49148: linux: In the Linux kernel, the following vulnerability has been resolved:  watch_queue: Free the page array when watch_queu...

CVE-2022-49148 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49148, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-49148
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  watch_queue: Free the page array when watch_queue is dismantled  Commit 7ea1a0124b6d ("watch_queue: Free the alloc bitmap when the watch_queue is torn down") took care of the bitmap, but not the page array.    BUG: memory leak   unreferenced object 0xffff88810d9bc140 (size 32):   comm "syz-executor335", pid 3603, jiffies 4294946994 (age 12.840s)   hex dump (first 32 bytes):     40 a7 40 04 00 ea ff ff 00 00 00 00 00 00 00 00  @.@.............     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................   backtrace:      kmalloc_array include/linux/slab.h:621 [inline]      kcalloc include/linux/slab.h:652 [inline]      watch_queue_set_size+0x12f/0x2e0 kernel/watch_queue.c:251      pipe_ioctl+0x82/0x140 fs/pipe.c:632      vfs_ioctl fs/ioctl.c:51 [inline]      __do_sys_ioctl fs/ioctl.c:874 [inline]      __se_sys_ioctl fs/ioctl.c:860 [inline]      __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860      do_syscall_x64 arch/x86/entry/common.c:50 [inline]

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.17.3-1 | [DEBIAN-CVE-2022-49148](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49148.md) | Feb 26, 2025 |
| Linux | linux Debian 13.5 (trixie) | 5.17.3-1 | [DEBIAN-CVE-2022-49148](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49148.md) | Feb 26, 2025 |
| Linux | linux Debian 14 | 5.17.3-1 | [DEBIAN-CVE-2022-49148](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49148.md) | Feb 26, 2025 |

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