CVE-2023-53600
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
tunnels: fix kasan splat when generating ipv4 pmtu error
In the Linux kernel, the following vulnerability has been resolved: tunnels: fix kasan splat when generating ipv4 pmtu error If we try to emit an icmp error in response to a nonliner skb, we get BUG: KASAN: slab-out-of-bounds in ip_compute_csum+0x134/0x220 Read of size 4 at addr ffff88811c50db00 by task iperf3/1691 CPU: 2 PID: 1691 Comm: iperf3 Not tainted 6.5.0-rc3+ #309 [..] kasan_report+0x105/0x140 ip_compute_csum+0x134/0x220 iptunnel_pmtud_build_icmp+0x554/0x1020 skb_tunnel_check_pmtu+0x513/0xb80 vxlan_xmit_one+0x139e/0x2ef0 vxlan_xmit+0x1867/0x2760 dev_hard_start_xmit+0x1ee/0x4f0 br_dev_queue_push_xmit+0x4d1/0x660 [..] ip_compute_csum() cannot deal with nonlinear skbs, so avoid it. After this change, splat is gone and iperf3 is no longer stuck.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4cb47a8644cc9eb8ec81190a50e79e6530d0297f | affected | git | 5850c391fd7e25662334cb3cbf29a62bcbff1084 | Unavailable | None listed |
| 4cb47a8644cc9eb8ec81190a50e79e6530d0297f | affected | git | e95808121953410db8c59f0abfde70ac0d34222c | Unavailable | None listed |
| 4cb47a8644cc9eb8ec81190a50e79e6530d0297f | affected | git | da5f42a6e7485fbb7a6dbd6a2b3045e19e4df5cc | Unavailable | None listed |
| 4cb47a8644cc9eb8ec81190a50e79e6530d0297f | affected | git | fe6a9f7516735be9fdabab00e47ef7a3403a174d | Unavailable | None listed |
| 4cb47a8644cc9eb8ec81190a50e79e6530d0297f | affected | git | 6a7ac3d20593865209dceb554d8b3f094c6bd940 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.9 | Unavailable | None listed |
| 5.10.191 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.127 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.46 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.4.11 | unaffected | semver | Unavailable | 6.4.* | None listed |
| 6.5 | unaffected | original_commit_for_fix | Unavailable | * | None listed |