CVE-2025-39873
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
In the Linux kernel, the following vulnerability has been resolved: can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB can_put_echo_skb() takes ownership of the SKB and it may be freed during or after the call. However, xilinx_can xcan_write_frame() keeps using SKB after the call. Fix that by only calling can_put_echo_skb() after the code is done touching the SKB. The tx_lock is held for the entire xcan_write_frame() execution and also on the can_get_echo_skb() side so the order of operations does not matter. An earlier fix commit 3d3c817c3a40 ("can: xilinx_can: Fix usage of skb memory") did not move the can_put_echo_skb() call far enough. [mkl: add "commit" in front of sha1 in patch description] [mkl: fix indention]
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) |
|---|---|---|---|---|---|
| 1598efe57b3e768056e4ca56cb9cf33111e68d1c | affected | git | e202ffd9e54538ef67ec301ebd6d9da4823466c9 | Unavailable | None listed |
| 1598efe57b3e768056e4ca56cb9cf33111e68d1c | affected | git | 1139321161a3ba5e45e61e0738b37f42f20bc57a | Unavailable | None listed |
| 1598efe57b3e768056e4ca56cb9cf33111e68d1c | affected | git | 94b050726288a56a6b8ff55aa641f2fedbd3b44c | Unavailable | None listed |
| 1598efe57b3e768056e4ca56cb9cf33111e68d1c | affected | git | 725b33deebd6e4c96fe7893f384510a54258f28f | Unavailable | None listed |
| 1598efe57b3e768056e4ca56cb9cf33111e68d1c | affected | git | 668cc1e3bb21101d074e430de1b7ba8fd10189e7 | Unavailable | None listed |
| 1598efe57b3e768056e4ca56cb9cf33111e68d1c | affected | git | ef79f00be72bd81d2e1e6f060d83cf7e425deee4 | 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) |
|---|---|---|---|---|---|
| 4.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.19 | Unavailable | None listed |
| 5.15.194 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.153 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.107 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.48 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.16.8 | unaffected | semver | Unavailable | 6.16.* | None listed |
| 6.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |