CVE-2022-49630
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49630
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49630.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49630
- Downstream
- Published
- 2025-02-26T02:23:43Z
- Modified
- 2025-10-21T10:48:45.884708Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- tcp: Fix a data-race around sysctl_tcp_ecn_fallback.
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix a data-race around sysctltcpecn_fallback.
While reading sysctltcpecnfallback, it can be changed concurrently. Thus, we need to add READONCE() to its reader.
- 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
-
Introduced492135557dc090a1abb2cfbe1a412757e3ed68abFixed8bcf7339f2cf70ea4461df6ea045d1aadfabfa11
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced492135557dc090a1abb2cfbe1a412757e3ed68abFixed1ec3d6c2626ee6e1b36b7bd006873a271406ba61
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced492135557dc090a1abb2cfbe1a412757e3ed68abFixed12b8d9ca7e678abc48195294494f1815b555d658
Affected versions
v4.*
v4.1
v4.1-rc4
v4.1-rc5
v4.1-rc6
v4.1-rc7
v4.1-rc8
v4.10
v4.10-rc1
v4.10-rc2
v4.10-rc3
v4.10-rc4
v4.10-rc5
v4.10-rc6
v4.10-rc7
v4.10-rc8
v4.11
v4.11-rc1
v4.11-rc2
v4.11-rc3
v4.11-rc4
v4.11-rc5
v4.11-rc6
v4.11-rc7
v4.11-rc8
v4.12
v4.12-rc1
v4.12-rc2
v4.12-rc3
v4.12-rc4
v4.12-rc5
v4.12-rc6
v4.12-rc7
v4.13
v4.13-rc1
v4.13-rc2
v4.13-rc3
v4.13-rc4
v4.13-rc5
v4.13-rc6
v4.13-rc7
v4.14
v4.14-rc1
v4.14-rc2
v4.14-rc3
v4.14-rc4
v4.14-rc5
v4.14-rc6
v4.14-rc7
v4.14-rc8
v4.15
v4.15-rc1
v4.15-rc2
v4.15-rc3
v4.15-rc4
v4.15-rc5
v4.15-rc6
v4.15-rc7
v4.15-rc8
v4.15-rc9
v4.16
v4.16-rc1
v4.16-rc2
v4.16-rc3
v4.16-rc4
v4.16-rc5
v4.16-rc6
v4.16-rc7
v4.17
v4.17-rc1
v4.17-rc2
v4.17-rc3
v4.17-rc4
v4.17-rc5
v4.17-rc6
v4.17-rc7
v4.18
v4.18-rc1
v4.18-rc2
v4.18-rc3
v4.18-rc4
v4.18-rc5
v4.18-rc6
v4.18-rc7
v4.18-rc8
v4.19
v4.19-rc1
v4.19-rc2
v4.19-rc3
v4.19-rc4
v4.19-rc5
v4.19-rc6
v4.19-rc7
v4.19-rc8
v4.2
v4.2-rc1
v4.2-rc2
v4.2-rc3
v4.2-rc4
v4.2-rc5
v4.2-rc6
v4.2-rc7
v4.2-rc8
v4.20
v4.20-rc1
v4.20-rc2
v4.20-rc3
v4.20-rc4
v4.20-rc5
v4.20-rc6
v4.20-rc7
v4.3
v4.3-rc1
v4.3-rc2
v4.3-rc3
v4.3-rc4
v4.3-rc5
v4.3-rc6
v4.3-rc7
v4.4
v4.4-rc1
v4.4-rc2
v4.4-rc3
v4.4-rc4
v4.4-rc5
v4.4-rc6
v4.4-rc7
v4.4-rc8
v4.5
v4.5-rc1
v4.5-rc2
v4.5-rc3
v4.5-rc4
v4.5-rc5
v4.5-rc6
v4.5-rc7
v4.6
v4.6-rc1
v4.6-rc2
v4.6-rc3
v4.6-rc4
v4.6-rc5
v4.6-rc6
v4.6-rc7
v4.7
v4.7-rc1
v4.7-rc2
v4.7-rc3
v4.7-rc4
v4.7-rc5
v4.7-rc6
v4.7-rc7
v4.8
v4.8-rc1
v4.8-rc2
v4.8-rc3
v4.8-rc4
v4.8-rc5
v4.8-rc6
v4.8-rc7
v4.8-rc8
v4.9
v4.9-rc1
v4.9-rc2
v4.9-rc3
v4.9-rc4
v4.9-rc5
v4.9-rc6
v4.9-rc7
v4.9-rc8
v5.*
v5.0
v5.0-rc1
v5.0-rc2
v5.0-rc3
v5.0-rc4
v5.0-rc5
v5.0-rc6
v5.0-rc7
v5.0-rc8
v5.1
v5.1-rc1
v5.1-rc2
v5.1-rc3
v5.1-rc4
v5.1-rc5
v5.1-rc6
v5.1-rc7
v5.10
v5.10-rc1
v5.10-rc2
v5.10-rc3
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.15.1
v5.15.10
v5.15.11
v5.15.12
v5.15.13
v5.15.14
v5.15.15
v5.15.16
v5.15.17
v5.15.18
v5.15.19
v5.15.2
v5.15.20
v5.15.21
v5.15.22
v5.15.23
v5.15.24
v5.15.25
v5.15.26
v5.15.27
v5.15.28
v5.15.29
v5.15.3
v5.15.30
v5.15.31
v5.15.32
v5.15.33
v5.15.34
v5.15.35
v5.15.36
v5.15.37
v5.15.38
v5.15.39
v5.15.4
v5.15.40
v5.15.41
v5.15.42
v5.15.43
v5.15.44
v5.15.45
v5.15.46
v5.15.47
v5.15.48
v5.15.49
v5.15.5
v5.15.50
v5.15.51
v5.15.52
v5.15.53
v5.15.54
v5.15.55
v5.15.6
v5.15.7
v5.15.8
v5.15.9
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.18.1
v5.18.10
v5.18.11
v5.18.12
v5.18.2
v5.18.3
v5.18.4
v5.18.5
v5.18.6
v5.18.7
v5.18.8
v5.18.9
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.2
v5.2-rc1
v5.2-rc2
v5.2-rc3
v5.2-rc4
v5.2-rc5
v5.2-rc6
v5.2-rc7
v5.3
v5.3-rc1
v5.3-rc2
v5.3-rc3
v5.3-rc4
v5.3-rc5
v5.3-rc6
v5.3-rc7
v5.3-rc8
v5.4
v5.4-rc1
v5.4-rc2
v5.4-rc3
v5.4-rc4
v5.4-rc5
v5.4-rc6
v5.4-rc7
v5.4-rc8
v5.5
v5.5-rc1
v5.5-rc2
v5.5-rc3
v5.5-rc4
v5.5-rc5
v5.5-rc6
v5.5-rc7
v5.6
v5.6-rc1
v5.6-rc2
v5.6-rc3
v5.6-rc4
v5.6-rc5
v5.6-rc6
v5.6-rc7
v5.7
v5.7-rc1
v5.7-rc2
v5.7-rc3
v5.7-rc4
v5.7-rc5
v5.7-rc6
v5.7-rc7
v5.8
v5.8-rc1
v5.8-rc2
v5.8-rc3
v5.8-rc4
v5.8-rc5
v5.8-rc6
v5.8-rc7
v5.9
v5.9-rc1
v5.9-rc2
v5.9-rc3
v5.9-rc4
v5.9-rc5
v5.9-rc6
v5.9-rc7
v5.9-rc8
Database specific
vanir_signatures
[
{
"id": "CVE-2022-49630-06bb6f8c",
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"line_hashes": [
"275839456084175973972438356882467485920",
"136750756396821367569141099968634974482",
"185630519270864785578119507356303398098",
"61278203958993198705708849789612952598"
],
"threshold": 0.9
},
"target": {
"file": "net/ipv4/sysctl_net_ipv4.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1ec3d6c2626ee6e1b36b7bd006873a271406ba61",
"deprecated": false
},
{
"id": "CVE-2022-49630-2f496175",
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"line_hashes": [
"302961369771393032584086631015830682188",
"332536203169285569028205306340741302811",
"242705786410773622747687161401063727951",
"165495257679491155722598941030127775370"
],
"threshold": 0.9
},
"target": {
"file": "net/ipv4/tcp_output.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8bcf7339f2cf70ea4461df6ea045d1aadfabfa11",
"deprecated": false
},
{
"id": "CVE-2022-49630-342b0c0d",
"signature_type": "Function",
"signature_version": "v1",
"digest": {
"length": 186.0,
"function_hash": "111129580329521027630583752338949795289"
},
"target": {
"function": "tcp_ecn_clear_syn",
"file": "net/ipv4/tcp_output.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@12b8d9ca7e678abc48195294494f1815b555d658",
"deprecated": false
},
{
"id": "CVE-2022-49630-6d3d0b85",
"signature_type": "Function",
"signature_version": "v1",
"digest": {
"length": 186.0,
"function_hash": "111129580329521027630583752338949795289"
},
"target": {
"function": "tcp_ecn_clear_syn",
"file": "net/ipv4/tcp_output.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1ec3d6c2626ee6e1b36b7bd006873a271406ba61",
"deprecated": false
},
{
"id": "CVE-2022-49630-89099da6",
"signature_type": "Function",
"signature_version": "v1",
"digest": {
"length": 186.0,
"function_hash": "111129580329521027630583752338949795289"
},
"target": {
"function": "tcp_ecn_clear_syn",
"file": "net/ipv4/tcp_output.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8bcf7339f2cf70ea4461df6ea045d1aadfabfa11",
"deprecated": false
},
{
"id": "CVE-2022-49630-960128bd",
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"line_hashes": [
"275839456084175973972438356882467485920",
"136750756396821367569141099968634974482",
"185630519270864785578119507356303398098",
"61278203958993198705708849789612952598"
],
"threshold": 0.9
},
"target": {
"file": "net/ipv4/sysctl_net_ipv4.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8bcf7339f2cf70ea4461df6ea045d1aadfabfa11",
"deprecated": false
},
{
"id": "CVE-2022-49630-9817f941",
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"line_hashes": [
"302961369771393032584086631015830682188",
"332536203169285569028205306340741302811",
"242705786410773622747687161401063727951",
"165495257679491155722598941030127775370"
],
"threshold": 0.9
},
"target": {
"file": "net/ipv4/tcp_output.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@12b8d9ca7e678abc48195294494f1815b555d658",
"deprecated": false
},
{
"id": "CVE-2022-49630-a0824c08",
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"line_hashes": [
"275839456084175973972438356882467485920",
"136750756396821367569141099968634974482",
"185630519270864785578119507356303398098",
"61278203958993198705708849789612952598"
],
"threshold": 0.9
},
"target": {
"file": "net/ipv4/sysctl_net_ipv4.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@12b8d9ca7e678abc48195294494f1815b555d658",
"deprecated": false
},
{
"id": "CVE-2022-49630-df5149be",
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"line_hashes": [
"302961369771393032584086631015830682188",
"332536203169285569028205306340741302811",
"242705786410773622747687161401063727951",
"165495257679491155722598941030127775370"
],
"threshold": 0.9
},
"target": {
"file": "net/ipv4/tcp_output.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1ec3d6c2626ee6e1b36b7bd006873a271406ba61",
"deprecated": false
}
]