CVE-2019-12455
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux...
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux kernel through 5.1.5. There is an unchecked kstrndup of derived_name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: This id is disputed as not being an issue because “The memory allocation that was not checked is part of a code that only runs at boot time, before user processes are started. Therefore, there is no possibility for an unprivileged user to control it, and no denial of service.”
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
5.5
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux kernel through 5.1.5. There is an unchecked kstrndup of derived_name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: This id is disputed as not being an issue because “The memory allocation that was not checked is part of a code that only runs at boot time, before user processes are started. Therefore, there is no possibility for an unprivileged user to control it, and no denial of service.”
- Record
CVE-2019-12455- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.9 Medium
AV:L/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux kernel through 5.1.5. There is an unchecked kstrndup of derived_name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: This id is disputed as not being an issue because “The memory allocation that was not checked is part of a code that only runs at boot time, before user processes are started. Therefore, there is no possibility for an unprivileged user to control it, and no denial of service.”
- Record
CVE-2019-12455- Updated
- 2026-11-02
EUVDEUVD-2019-4063 No score
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux kernel through 5.1.5. There is an unchecked kstrndup of derived_name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: This id is disputed as not being an issue because “The memory allocation that was not checked is part of a code that only runs at boot time, before user processes are started. Therefore, there is no possibility for an unprivileged user to control it, and no denial of service.”
- Record
EUVD-2019-4063- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r2qx-grq5-8x3g
5.5
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux...
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux kernel through 5.1.5. There is an unchecked kstrndup of derived_name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash).
- Record
GHSA-r2qx-grq5-8x3g- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVBELL-CVE-2019-12455
5.5
CVE-2019-12455 does not affect BellSoft software
- Record
BELL-CVE-2019-12455- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
5.5
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux kernel through 5.1.5. There is an unchecked kstrndup of derived_name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: This id is disputed as not being an issue because “The memory allocation that was not checked is part of a code that only runs at boot time, before user processes are started. Therefore, there is no possibility for an unprivileged user to control it, and no denial of service.”
- Record
CVE-2019-12455- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Show 4 moreShow less
OSVDEBIAN-CVE-2019-12455
5.5
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux kernel through 5.1.5. There is an unchecked kstrndup of derived_name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: This id is disputed as not being an issue because “The memory allocation that was not checked is part of a code that only runs at boot time, before user processes are started. Therefore, there is no possibility for an unprivileged user to control it, and no denial of service.”
- Record
DEBIAN-CVE-2019-12455- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-12455
5.5
An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux kernel through 5.1.5. There is an unchecked kstrndup of derived_name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: This id is disputed as not being an issue because “The memory allocation that was not checked is part of a code that only runs at boot time, before user processes are started. Therefore, there is no possibility for an unprivileged user to control it, and no denial of service.”
- Record
UBUNTU-CVE-2019-12455- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-06
OSVROOT-OS-DEBIAN-12-CVE-2019-12455 No score
CVE-2019-12455 in linux - Patched by Root
Root has patched CVE-2019-12455 in the linux package for Root:Debian:12. Multiple fixed versions available.
- Record
ROOT-OS-DEBIAN-12-CVE-2019-12455- Updated
- 2026-11-02
OSVROOT-OS-DEBIAN-13-CVE-2019-12455 No score
CVE-2019-12455 in linux - Patched by Root
Root has patched CVE-2019-12455 in the linux package for Root:Debian:13. Multiple fixed versions available.
- Record
ROOT-OS-DEBIAN-13-CVE-2019-12455- Updated
- 2026-11-03
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linuxDebian:12 |
All versions, plus listed versions 6.1.106-16.1.106-26.1.106-36.1.112-16.1.115-1 Show 45 moreShow less6.1.119-16.1.123-16.1.124-16.1.128-16.1.129-16.1.133-16.1.135-16.1.137-16.1.139-16.1.140-16.1.147-16.1.148-16.1.153-16.1.158-16.1.159-16.1.162-16.1.164-16.1.170-16.1.170-26.1.170-36.1.172-16.1.174-16.1.176-16.1.177-16.1.180-16.1.187-16.1.27-16.1.37-16.1.38-16.1.38-26.1.38-2~bpo11+16.1.38-36.1.38-46.1.38-4~bpo11+16.1.52-16.1.55-16.1.55-1~bpo11+16.1.64-16.1.66-16.1.67-16.1.69-16.1.69-1~bpo11+16.1.76-16.1.76-1~bpo11+16.1.82-1 |
None known |
linuxDebian:13 |
All versions, plus listed versions 6.12.100-16.12.101-16.12.105-16.12.107-16.12.38-1 Show 45 moreShow less6.12.41-16.12.43-16.12.43-1~bpo12+16.12.48-16.12.57-16.12.57-1~bpo12+16.12.63-16.12.63-1~bpo12+16.12.69-16.12.69-1~bpo12+16.12.73-16.12.73-1~bpo12+16.12.74-16.12.74-26.12.74-2~bpo12+16.12.85-16.12.85-1~bpo12+16.12.86-16.12.86-1~bpo12+16.12.88-16.12.88-1~bpo12+16.12.90-16.12.90-1~bpo12+16.12.90-26.12.90-2~bpo12+16.12.94-16.12.94-1~bpo12+16.12.95-16.12.95-1~bpo12+16.12.96-16.13.10-1~exp16.13.11-1~exp16.13.2-1~exp16.13.3-1~exp16.13.4-1~exp16.13.5-1~exp16.13.6-1~exp16.13.7-1~exp16.13.8-1~exp16.13.9-1~exp16.13~rc6-1~exp16.13~rc7-1~exp16.14.3-1~exp16.14.5-1~exp16.14.6-1~exp1 |
None known |
linuxDebian:14 |
All versions, plus listed versions 6.12.100-16.12.101-16.12.105-16.12.107-16.12.38-1 Show 45 moreShow less6.12.41-16.12.43-16.12.43-1~bpo12+16.12.48-16.12.57-16.12.57-1~bpo12+16.12.63-16.12.63-1~bpo12+16.12.69-16.12.69-1~bpo12+16.12.73-16.12.73-1~bpo12+16.12.74-16.12.74-26.12.74-2~bpo12+16.12.85-16.12.85-1~bpo12+16.12.86-16.12.86-1~bpo12+16.12.88-16.12.88-1~bpo12+16.12.90-16.12.90-1~bpo12+16.12.90-26.12.90-2~bpo12+16.12.94-16.12.94-1~bpo12+16.12.95-16.12.95-1~bpo12+16.12.96-16.13.10-1~exp16.13.11-1~exp16.13.2-1~exp16.13.3-1~exp16.13.4-1~exp16.13.5-1~exp16.13.6-1~exp16.13.7-1~exp16.13.8-1~exp16.13.9-1~exp16.13~rc6-1~exp16.13~rc7-1~exp16.14.3-1~exp16.14.5-1~exp16.14.6-1~exp1 |
None known |
linuxRoot:Debian:12 |
before 6.1.190-1.aikido.167 | 6.1.190-1.aikido.167 |
rootio-linuxRoot:Debian:12 |
before 6.1.190-1.aikido.167 | 6.1.190-1.aikido.167 |
linuxRoot:Debian:13 |
before 6.12.115-2.aikido.164 | 6.12.115-2.aikido.164 |
rootio-linuxRoot:Debian:13 |
before 6.12.115-2.aikido.164 | 6.12.115-2.aikido.164 |
linuxUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 3.11.0-12.193.12.0-1.33.12.0-2.53.12.0-2.73.12.0-3.8 Show 45 moreShow less3.12.0-3.93.12.0-4.103.12.0-4.123.12.0-5.133.12.0-7.153.13.0-1.163.13.0-2.173.13.0-3.183.13.0-4.193.13.0-5.203.13.0-6.233.13.0-7.253.13.0-7.263.13.0-8.273.13.0-8.283.13.0-10.303.13.0-11.313.13.0-12.323.13.0-13.333.13.0-14.343.13.0-15.353.13.0-16.363.13.0-17.373.13.0-18.383.13.0-19.393.13.0-19.403.13.0-20.423.13.0-21.433.13.0-22.443.13.0-23.453.13.0-24.463.13.0-24.473.13.0-27.503.13.0-29.533.13.0-30.543.13.0-30.553.13.0-32.573.13.0-33.583.13.0-34.603.13.0-35.623.13.0-36.633.13.0-37.643.13.0-39.663.13.0-40.693.13.0-41.70 |
None known |
linux-awsUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 4.4.0-1002.24.4.0-1003.34.4.0-1005.54.4.0-1006.64.4.0-1009.9 Show 45 moreShow less4.4.0-1010.104.4.0-1011.114.4.0-1012.124.4.0-1014.144.4.0-1016.164.4.0-1017.174.4.0-1019.194.4.0-1022.224.4.0-1023.234.4.0-1024.254.4.0-1025.264.4.0-1027.304.4.0-1028.314.4.0-1029.324.4.0-1031.344.4.0-1032.354.4.0-1034.374.4.0-1036.394.4.0-1037.404.4.0-1038.414.4.0-1039.424.4.0-1040.434.4.0-1042.454.4.0-1044.474.4.0-1045.484.4.0-1046.504.4.0-1048.524.4.0-1050.544.4.0-1052.564.4.0-1054.584.4.0-1055.594.4.0-1056.604.4.0-1058.624.4.0-1059.634.4.0-1060.644.4.0-1061.654.4.0-1062.664.4.0-1064.684.4.0-1065.694.4.0-1066.704.4.0-1067.714.4.0-1073.774.4.0-1074.784.4.0-1075.794.4.0-1076.80 |
None known |
linux-azureUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 4.15.0-1023.24~14.04.14.15.0-1030.31~14.04.14.15.0-1031.32~14.04.14.15.0-1032.33~14.04.24.15.0-1035.36~14.04.2 Show 45 moreShow less4.15.0-1036.38~14.04.24.15.0-1037.39~14.04.24.15.0-1039.41~14.04.24.15.0-1040.44~14.04.14.15.0-1041.45~14.04.14.15.0-1042.46~14.04.14.15.0-1045.49~14.04.14.15.0-1046.50~14.04.14.15.0-1047.51~14.04.14.15.0-1049.54~14.04.14.15.0-1050.55~14.04.14.15.0-1051.56~14.04.14.15.0-1052.57~14.04.14.15.0-1055.60~14.04.14.15.0-1056.61~14.04.14.15.0-1057.62~14.04.14.15.0-1059.64~14.04.14.15.0-1060.65~14.04.14.15.0-1061.66~14.04.14.15.0-1063.68~14.04.14.15.0-1064.69~14.04.14.15.0-1066.71~14.04.14.15.0-1067.72~14.04.14.15.0-1069.74~14.04.14.15.0-1071.76~14.04.14.15.0-1074.79~14.04.14.15.0-1077.82~14.04.14.15.0-1082.92~14.04.14.15.0-1083.93~14.04.14.15.0-1089.99~14.04.14.15.0-1091.101~14.04.14.15.0-1092.102~14.04.14.15.0-1093.103~14.04.14.15.0-1095.105~14.04.14.15.0-1096.106~14.04.14.15.0-1098.109~14.04.14.15.0-1100.111~14.04.14.15.0-1102.113~14.04.14.15.0-1103.114~14.04.14.15.0-1106.118~14.04.14.15.0-1108.120~14.04.14.15.0-1109.121~14.04.14.15.0-1110.122~14.04.14.15.0-1111.123~14.04.14.15.0-1112.124~14.04.1 |
None known |
linux-lts-xenialUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 4.4.0-13.29~14.04.14.4.0-14.30~14.04.24.4.0-15.31~14.04.14.4.0-18.34~14.04.14.4.0-21.37~14.04.1 Show 45 moreShow less4.4.0-22.39~14.04.14.4.0-22.40~14.04.14.4.0-24.43~14.04.14.4.0-28.47~14.04.14.4.0-31.50~14.04.14.4.0-34.53~14.04.14.4.0-36.55~14.04.14.4.0-38.57~14.04.14.4.0-42.62~14.04.14.4.0-45.66~14.04.14.4.0-47.68~14.04.14.4.0-51.72~14.04.14.4.0-53.74~14.04.14.4.0-57.78~14.04.14.4.0-59.80~14.04.14.4.0-62.83~14.04.14.4.0-63.84~14.04.24.4.0-64.85~14.04.14.4.0-66.87~14.04.14.4.0-67.88~14.04.14.4.0-70.91~14.04.14.4.0-71.92~14.04.14.4.0-72.93~14.04.14.4.0-75.96~14.04.14.4.0-78.99~14.04.24.4.0-79.100~14.04.14.4.0-81.104~14.04.14.4.0-83.106~14.04.14.4.0-87.110~14.04.14.4.0-89.112~14.04.14.4.0-91.114~14.04.14.4.0-92.115~14.04.14.4.0-93.116~14.04.14.4.0-96.119~14.04.14.4.0-97.120~14.04.14.4.0-98.121~14.04.14.4.0-101.124~14.04.14.4.0-103.126~14.04.14.4.0-104.127~14.04.14.4.0-108.131~14.04.14.4.0-109.132~14.04.14.4.0-111.134~14.04.14.4.0-112.135~14.04.14.4.0-116.140~14.04.14.4.0-119.143~14.04.1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | OSV | |
| affected | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-12455 is a medium vulnerability (CVSS 5.5) in Linux Kernel, published May 30, 2019. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 0.44%, the 38th percentile. Fixed in linux 6.1.190-1.aikido.167.
References
mail-archive.com/linux-kernel%40vger.kernel.org/msg2010240.html
git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git/commit?h=sunxi/clk-for-5.3&id=fcdf445ff42f036d22178b49cf64e92d527c1330
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI
security.netapp.com/advisory/ntap-20190710-0002
nvd.nist.gov/vuln/detail/CVE-2019-12455
mail-archive.com/[email protected]/msg2010240.html
Show 7 moreShow less
lists.fedoraproject.org/archives/list/[email protected]/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI
github.com/advisories/GHSA-r2qx-grq5-8x3g
docs.bell-sw.com/security/cves/CVE-2019-12455
security-tracker.debian.org/tracker/CVE-2019-12455
ubuntu.com/security/CVE-2019-12455
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=fcdf445ff42f036d22178b49cf64e92d527c1330
cve.org/CVERecord?id=CVE-2019-12455
Left out here: 973 versions. The JSON record has them.