Updated: 2025-12-28 03:44:10.325626
Description:
In the Linux kernel, the following vulnerability has been resolved: atm: Revert atm_account_tx() if copy_from_iter_full() fails. In vcc_sendmsg(), we account skb->truesize to sk->sk_wmem_alloc by atm_account_tx(). It is expected to be reverted by atm_pop_raw() later called by vcc->dev->ops->send(vcc, skb). However, vcc_sendmsg() misses the same revert when copy_from_iter_full() fails, and then we will leak a socket. Let's factorise the revert part as atm_return_tx() and call it in the failure path. Note that the corresponding sk_wmem_alloc operation can be found in alloc_tx() as of the blamed commit. $ git blame -L:alloc_tx net/atm/common.c c55fa3cccbc2c~
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | MEDIUM | 5.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 5.5 | MEDIUM | Needs Triage | 2025-12-28 08:04:12 | ||
| CentOS 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Needs Triage | 2025-12-28 08:04:06 | ||
| CentOS 7 ELS | kernel | 3.10.0 | 5.5 | MEDIUM | Needs Triage | 2025-12-28 08:04:14 | ||
| CentOS 8.4 ELS | kernel | 4.18.0 | 5.5 | MEDIUM | Needs Triage | 2025-12-28 08:04:09 | ||
| CentOS 8.5 ELS | kernel | 4.18.0 | 5.5 | MEDIUM | Needs Triage | 2025-12-28 08:04:08 | ||
| CentOS Stream 8 ELS | kernel | 4.18.0 | 5.5 | MEDIUM | Needs Triage | 2025-12-28 08:04:16 | ||
| CloudLinux 7 ELS | kernel | 3.10.0 | 5.5 | MEDIUM | Needs Triage | 2025-12-28 08:04:19 | ||
| Oracle Linux 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Needs Triage | 2025-12-28 08:04:15 | ||
| Oracle Linux 7 ELS | kernel | 3.10.0 | 5.5 | MEDIUM | Needs Triage | 2025-12-28 08:04:18 | ||
| Oracle Linux 7 ELS | kernel-uek | 5.4.17 | 5.5 | MEDIUM | Released | CLSA-2025:1757963029 | 2025-09-16 11:19:53 |