RDMA/rxe: Fix NULL-ptr-deref in rxe_qp_do_cleanup() when socket create failed (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.60 % · percentile 49 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Deferred
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix NULL-ptr-deref in rxe_qp_do_cleanup() when socket create failed There is a null-ptr-deref when mount.cifs over rdma: BUG: KASAN: null-ptr-deref in rxe_qp_do_cleanup+0x2f3/0x360 [rdma_rxe] Read of size 8 at addr 0000000000000018 by task mount.cifs/3046 CPU: 2 PID: 3046 Comm: mount.cifs Not tainted 6.1.0-rc5+ #62 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc3 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 kasan_report+0xad/0x130 rxe_qp_do_cleanup+0x2f3/0x360 [rdma_rxe] execute_in_process_context+0x25/0x90 __rxe_cleanup+0x101/0x1d0 [rdma_rxe] rxe_create_qp+0x16a/0x180 [rdma_rxe] create_qp.part.0+0x27d/0x340 ib_create_qp_kernel+0x73/0x160 rdma_create_qp+0x100/0x230 _smbd_get_connection+0x752/0x20f0 smbd_get_connection+0x21/0x40 cifs_get_tcp_session+0x8ef/0xda0 mount_get_conns+0x60/0x750 cifs_mount+0x103/0xd00 cifs_smb3_do_mount+0x1dd/0xcb0 smb3_get_tree+0x1d5/0x300 vfs_get_tree+0x41/0xf0 path_mount+0x9b3/0xdd0 __x64_sys_mount+0x190/0x1d0 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 The root cause of the issue is the socket create failed in rxe_qp_init_req(). So move the reset rxe_qp_do_cleanup() after the NULL ptr check.
References
- https://git.kernel.org/stable/c/ee24de095569935eba600f7735e8e8ddea5b418e
- https://git.kernel.org/stable/c/7340ca9f782be6fbe3f64a134dc112772764f766
- https://git.kernel.org/stable/c/bd7106a6004f1077a365ca7f5a99c7a708e20714
- https://git.kernel.org/stable/c/6bb5a62bfd624039b05157745c234068508393a9
- https://git.kernel.org/stable/c/f64f08b9e6fb305a25dd75329e06ae342b9ce336
- https://git.kernel.org/stable/c/5b924632d84a60bc0c7fe6e9bbbce99d03908957
- https://git.kernel.org/stable/c/821f9a18210f6b9fd6792471714c799607b25db4
- https://git.kernel.org/stable/c/f67376d801499f4fa0838c18c1efcad8840e550d
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | Linux |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2022-55911
- GCVE · GCVE-0-2022-50885
CERT-FR advisories
- CERTFR-2026-AVI-0225 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0170 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0108 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 8700e3e7c4857d28ebaa824509934556da0b3e76 < ee24de095569935eba600f7735e8e8ddea5b418e ; affected 8700e3e7c4857d28ebaa824509934556da0b3e76 < 7340ca9f782be6fbe3f64a134dc112772764f766 ; affected 8700e3e7c4857d28ebaa824509934556da0b3e76 < bd7106a6004f1077a365ca7f5a99c7a708e20714 ; affected 8700e3e7c4857d28ebaa824509934556da0b3e76 < 6bb5a62bfd624039b05157745c234068508393a9 ; affected 8700e3e7c4857d28ebaa824509934556da0b3e76 < f64f08b9e6fb305a25dd75329e06ae342b9ce336 ; affected 8700e3e7c4857d28ebaa824509934556da0b3e76 < 5b924632d84a60bc0c7fe6e9bbbce99d03908957 |
| Linux · Linux | affected 4.8 ; unaffected 0 < 4.8 ; unaffected 4.14.303 ≤ 4.14.* ; unaffected 4.19.270 ≤ 4.19.* ; unaffected 5.4.229 ≤ 5.4.* ; unaffected 5.10.163 ≤ 5.10.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |