01 Record

CVE-2022-49977

ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.23% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 13.4% of scored records. A rank, not a probability.
NVD base score: 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-08-04.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-06-18 11:00Z1 YR AGO

Last updated

2026-08-05 08:56Z1 MO AGO

Reserved

2025-06-18

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-476NULL Pointer DereferenceBase
CWE-763Release of Invalid Pointer or ReferenceBase

Data version

5.2

Document digest

3a49654c3c5fb302d9961ac13e7c96972eebe27938638f775b2d741a0eaac86a

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux8a56d7761d2d041ae5e8215d20b4167d8aa93f51 to < 8569b4ada1e0b9bfaa125bd0c0967918b6560fa2, 8a56d7761d2d041ae5e8215d20b4167d8aa93f51 to < 4c34a2a6c9927c239dd2e295a03d49b37b618d2c, 8a56d7761d2d041ae5e8215d20b4167d8aa93f51 to < ddffe882d74ef43a3494f0ab0c24baf076c45f96, 8a56d7761d2d041ae5e8215d20b4167d8aa93f51 to < 934e49f7d696afdae9f979abe3f308408184e17b, 8a56d7761d2d041ae5e8215d20b4167d8aa93f51 to < dbd8c8fc60480e3faa3ae7e27ebe03371ecd1b77, 8a56d7761d2d041ae5e8215d20b4167d8aa93f51 to < e4ae97295984ff1b9b340ed18ae1b066f36b7835, 8a56d7761d2d041ae5e8215d20b4167d8aa93f51 to < d81bd6671f45fde4c3ac7fd7733c6e3082ae9d8e, 8a56d7761d2d041ae5e8215d20b4167d8aa93f51 to < c3b0f72e805f0801f05fa2aa52011c4bfc694c44, 969a08e9048ddd0d655a19e692673cdb95116ce6, 51d351d5b949ae7204696ada7ef502ed34d34fb0, 2940c25bec92f40a3f7f32504b8ea115d1701892, 189f4e672fc1c086f78818affc810ef29dda42a3, 3.2.54 to < 3.3, 3.4.72 to < 3.5, 3.10.22 to < 3.11, 3.12.3 to < 3.13, 3.13—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/8569b4ada1e0b9bfaa125bd0c0967918b6560fa2
git.kernel.orghttps://git.kernel.org/stable/c/4c34a2a6c9927c239dd2e295a03d49b37b618d2c
git.kernel.orghttps://git.kernel.org/stable/c/ddffe882d74ef43a3494f0ab0c24baf076c45f96
git.kernel.orghttps://git.kernel.org/stable/c/934e49f7d696afdae9f979abe3f308408184e17b
git.kernel.orghttps://git.kernel.org/stable/c/dbd8c8fc60480e3faa3ae7e27ebe03371ecd1b77
git.kernel.orghttps://git.kernel.org/stable/c/e4ae97295984ff1b9b340ed18ae1b066f36b7835
git.kernel.orghttps://git.kernel.org/stable/c/d81bd6671f45fde4c3ac7fd7733c6e3082ae9d8e
git.kernel.orghttps://git.kernel.org/stable/c/c3b0f72e805f0801f05fa2aa52011c4bfc694c44

01 Record index

CVE-2022-49977

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2022-49977

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References