DEBIAN-CVE-2021-47077
- Source
- https://security-tracker.debian.org/tracker/CVE-2021-47077
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47077.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-47077
- Upstream
- Published
- 2024-03-01T22:15:47Z
- Modified
- 2025-09-25T22:40:50Z
- 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
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: scsi: qedf: Add pointer checks in qedfupdatelinkspeed() The following trace was observed: [ 14.042059] Call Trace: [ 14.042061] <IRQ> [ 14.042068] qedflinkupdate+0x144/0x1f0 [qedf] [ 14.042117] qedlinkupdate+0x5c/0x80 [qed] [ 14.042135] qedmcphandlelinkchange+0x2d2/0x410 [qed] [ 14.042155] ? qedsetptt+0x70/0x80 [qed] [ 14.042170] ? qedsetptt+0x70/0x80 [qed] [ 14.042186] ? qedrd+0x13/0x40 [qed] [ 14.042205] qedmcphandleevents+0x437/0x690 [qed] [ 14.042221] ? qedsetptt+0x70/0x80 [qed] [ 14.042239] qedintspdpc+0x3a6/0x3e0 [qed] [ 14.042245] taskletactioncommon.isra.14+0x5a/0x100 [ 14.042250] _dosoftirq+0xe4/0x2f8 [ 14.042253] irqexit+0xf7/0x100 [ 14.042255] doIRQ+0x7f/0xd0 [ 14.042257] commoninterrupt+0xf/0xf [ 14.042259] </IRQ> API qedflinkupdate() is getting called from QED but by that time shostdata is not initialised. This results in a NULL pointer dereference when we try to dereference shostdata while updating supportedspeeds. Add a NULL pointer check before dereferencing shost_data.
- References
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source