DEBIAN-CVE-2024-38596

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Source
https://security-tracker.debian.org/tracker/CVE-2024-38596
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-38596.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2024-38596
Upstream
Published
2024-06-19T14:15:19Z
Modified
2025-09-25T23:29:19.702360Z
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
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix data races in unixreleasesock/unixstreamsendmsg A data-race condition has been identified in afunix. In one data path, the write function unixreleasesock() atomically writes to sk->skshutdown using WRITEONCE. However, on the reader side, unixstreamsendmsg() does not read it atomically. Consequently, this issue is causing the following KCSAN splat to occur: BUG: KCSAN: data-race in unixreleasesock / unixstreamsendmsg write (marked) to 0xffff88867256ddbb of 1 bytes by task 7270 on cpu 28: unixreleasesock (net/unix/afunix.c:640) unixrelease (net/unix/afunix.c:1050) sockclose (net/socket.c:659 net/socket.c:1421) fput (fs/filetable.c:422) _fputsync (fs/filetable.c:508) _sesysclose (fs/open.c:1559 fs/open.c:1541) _x64sysclose (fs/open.c:1541) x64syscall (arch/x86/entry/syscall64.c:33) dosyscall64 (arch/x86/entry/common.c:?) entrySYSCALL64afterhwframe (arch/x86/entry/entry64.S:130) read to 0xffff88867256ddbb of 1 bytes by task 989 on cpu 14: unixstreamsendmsg (net/unix/afunix.c:2273) _socksendmsg (net/socket.c:730 net/socket.c:745) _syssendmsg (net/socket.c:2584) _syssendmmsg (net/socket.c:2638 net/socket.c:2724) _x64syssendmmsg (net/socket.c:2753 net/socket.c:2750 net/socket.c:2750) x64syscall (arch/x86/entry/syscall64.c:33) dosyscall64 (arch/x86/entry/common.c:?) entrySYSCALL64afterhwframe (arch/x86/entry/entry64.S:130) value changed: 0x01 -> 0x03 The line numbers are related to commit dd5a440a31fa ("Linux 6.9-rc7"). Commit e1d09c2c2f57 ("afunix: Fix data races around sk->skshutdown.") addressed a comparable issue in the past regarding sk->skshutdown. However, it overlooked resolving this particular data path. This patch only offending unixstreamsendmsg() function, since the other reads seem to be protected by unixstate_lock() as discussed in

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.221-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+1
5.10.70-1
5.10.84-1
5.10.92-1~bpo10+1
5.10.92-1
5.10.92-2
5.10.103-1~bpo10+1
5.10.103-1
5.10.106-1
5.10.113-1
5.10.120-1~bpo10+1
5.10.120-1
5.10.127-1
5.10.127-2~bpo10+1
5.10.127-2
5.10.136-1
5.10.140-1
5.10.148-1
5.10.149-1
5.10.149-2
5.10.158-1
5.10.158-2
5.10.162-1
5.10.178-1
5.10.178-2
5.10.178-3
5.10.179-1
5.10.179-2
5.10.179-3
5.10.179-4
5.10.179-5
5.10.191-1
5.10.197-1
5.10.205-1
5.10.205-2
5.10.209-1
5.10.209-2
5.10.216-1
5.10.218-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.94-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1
6.1.85-1
6.1.90-1~bpo11+1
6.1.90-1
6.1.94-1~bpo11+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.12-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.12-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}