CVE-2025-38471
published 2025-07-28CVE-2025-38471: In the Linux kernel, the following vulnerability has been resolved: tls: always refresh the queue when reading sock After recent changes in net-next TCP…
high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
In the Linux kernel, the following vulnerability has been resolved:
tls: always refresh the queue when reading sock
After recent changes in net-next TCP compacts skbs much more
aggressively. This unearthed a bug in TLS where we may try
to operate on an old skb when checking if all skbs in the
queue have matching decrypt state and geometry.
BUG: KASAN: slab-use-after-free in tls_strp_check_rcv+0x898/0x9a0 [tls]
(net/tls/tls_strp.c:436 net/tls/tls_strp.c:530 net/tls/tls_strp.c:544)
Read of size 4 at addr ffff888013085750 by task tls/13529
CPU: 2 UID: 0 PID: 13529 Comm: tls Not tainted 6.16.0-rc5-virtme
Call Trace:
kasan_report+0xca/0x100
tls_strp_check_rcv+0x898/0x9a0 [tls]
tls_rx_rec_wait+0x2c9/0x8d0 [tls]
tls_sw_recvmsg+0x40f/0x1aa0 [tls]
inet_recvmsg+0x1c3/0x1f0
Always reload the queue, fast path is to have the record in the queue
when we wake, anyway (IOW the path going down "if !strp->stm.full_len").
Affected
40 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 6.1.147-1 (bookworm) | linux 6.1.147-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.147-1 (bookworm) | linux 6.1.147-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 0d87bbd39d7fd1135ab9eca672d760470f6508e8 < 730fed2ff5e259495712518e18d9f521f61972bb | 730fed2ff5e259495712518e18d9f521f61972bb |
| linux | linux | >= 0d87bbd39d7fd1135ab9eca672d760470f6508e8 < 1f3a429c21e0e43e8b8c55d30701e91411a4df02 | 1f3a429c21e0e43e8b8c55d30701e91411a4df02 |
| linux | linux | >= 0d87bbd39d7fd1135ab9eca672d760470f6508e8 < cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8 | cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8 |
| linux | linux | >= 0d87bbd39d7fd1135ab9eca672d760470f6508e8 < c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6 | c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6 |
| linux | linux | >= 0d87bbd39d7fd1135ab9eca672d760470f6508e8 < 4ab26bce3969f8fd925fe6f6f551e4d1a508c68b | 4ab26bce3969f8fd925fe6f6f551e4d1a508c68b |
| linux | linux | >= 6.0.6 < 6.1 | 6.1 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.147-1 | 6.1.147-1 |
| linux | linux_kernel | >= 0 < 6.12.41-1 | 6.12.41-1 |
| linux | linux_kernel | >= 0 < 6.16.3-1 | 6.16.3-1 |
| linux | linux_kernel | >= 0 < 6.8.0-100.100 | 6.8.0-100.100 |
| linux | linux_kernel | >= 6.0.6 < 6.1 | 6.1 |
| linux | linux_kernel | >= 6.1.1 < 6.1.147 | 6.1.147 |
| linux | linux_kernel | >= 6.13 < 6.15.8 | 6.15.8 |
| linux | linux_kernel | >= 6.2 < 6.6.100 | 6.6.100 |
| linux | linux_kernel | >= 6.7 < 6.12.40 | 6.12.40 |
| msrc | azl3_avahi_0.8-4_on_azure_linux_3.0 | — | — |
| msrc | azl3_avahi_0.8-5_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.96.2-1_on_azure_linux_3.0 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH