CVE-2022-49148

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Source
https://cve.org/CVERecord?id=CVE-2022-49148
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49148.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49148
Downstream
Related
Published
2025-02-26T01:55:15.872Z
Modified
2026-03-12T03:24:45.639740Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
watch_queue: Free the page array when watch_queue is dismantled
Details

In the Linux kernel, the following vulnerability has been resolved:

watchqueue: Free the page array when watchqueue is dismantled

Commit 7ea1a0124b6d ("watchqueue: Free the alloc bitmap when the watchqueue 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: kmallocarray include/linux/slab.h:621 [inline] kcalloc include/linux/slab.h:652 [inline] watchqueuesetsize+0x12f/0x2e0 kernel/watchqueue.c:251 pipeioctl+0x82/0x140 fs/pipe.c:632 vfs_ioctl fs/ioctl.c:51 [inline] __dosysioctl fs/ioctl.c:874 [inline] __sesysioctl fs/ioctl.c:860 [inline] __x64sysioctl+0xfc/0x140 fs/ioctl.c:860 dosyscallx64 arch/x86/entry/common.c:50 [inline]

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49148.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
c73be61cede5882f9605a852414db559c0ebedfd
Fixed
7169f60110915c8b53bffd43741fa020a75eb87a
Fixed
4913daecd04addb41bc96a9175a885e1c19862a8
Fixed
3963a5d1ff75585bddf0c3a918566a6be09d7520
Fixed
375cd2536494cfbcdda84ae8b3e35bf19d0250b9
Fixed
b490207017ba237d97b735b2aa66dc241ccd18f5

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49148.json"