CVE-2023-52700
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-52700
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52700.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-52700
- Downstream
- Related
- Published
- 2024-05-21T15:22:50Z
- Modified
- 2025-10-16T12:56:45.067849Z
- 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
- tipc: fix kernel warning when sending SYN message
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
tipc: fix kernel warning when sending SYN message
When sending a SYN message, this kernel stack trace is observed:
... [ 13.396352] RIP: 0010:copyfromiter+0xb4/0x550 ... [ 13.398494] Call Trace: [ 13.398630] <TASK> [ 13.398630] ? _allocskb+0xed/0x1a0 [ 13.398630] tipcmsgbuild+0x12c/0x670 [tipc] [ 13.398630] ? shmemaddtopagecache.isra.71+0x151/0x290 [ 13.398630] _tipcsendmsg+0x2d1/0x710 [tipc] [ 13.398630] ? tipcconnect+0x1d9/0x230 [tipc] [ 13.398630] ? _localbhenableip+0x37/0x80 [ 13.398630] tipcconnect+0x1d9/0x230 [tipc] [ 13.398630] ? _sysconnect+0x9f/0xd0 [ 13.398630] _sysconnect+0x9f/0xd0 [ 13.398630] ? preemptcountadd+0x4d/0xa0 [ 13.398630] ? fpregsassertstateconsistent+0x22/0x50 [ 13.398630] _x64sysconnect+0x16/0x20 [ 13.398630] dosyscall64+0x42/0x90 [ 13.398630] entrySYSCALL64after_hwframe+0x63/0xcd
It is because commit a41dad905e5a ("iov_iter: saner checks for attempt to copy to/from iterator") has introduced sanity check for copying from/to iov iterator. Lacking of copy direction from the iterator viewpoint would lead to kernel stack trace like above.
This commit fixes this issue by initializing the iov iterator with the correct copy direction when sending SYN or ACK without data.
- 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
-
Introducedf25dcc7687d42a72de18aa41b04990a24c9e77c7Fixed54b6082aec178f16ad6d193b4ecdc9c4823d9a32
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf25dcc7687d42a72de18aa41b04990a24c9e77c7Fixed11a4d6f67cf55883dc78e31c247d1903ed7feccc