Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path In nvmet_tcp_try_recv_ddgst(), when a data digest mismatch is detected, nvmet_req_uninit() is called unconditionally. However, if the command arrived via the nvmet_tcp_handle_req_failure() path, nvmet_req_init() had returned false and percpu_ref_tryget_live() was never executed. The unconditional percpu_ref_put() inside nvmet_req_uninit() then causes a refcount underflow, leading to a WARNING in percpu_ref_switch_to_atomic_rcu, a use-after-free diagnostic, and eventually a permanent workqueue deadlock. Check cmd->flags & NVMET_TCP_F_INIT_FAILED before calling nvmet_req_uninit(), matching the existing pattern in nvmet_tcp_execute_request().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 91edfca6f8b364d60cde3ddefaf7d03ddf35774b before 22ec7a9fe9153d2737ee9b2fa6d2e43a1491decf; affected fda871c0ba5d2eed2cd1c881573168129da70058 before ba35b1c674ca3841c0dfadd698f2c1b3ec542d4e; affected fda871c0ba5d2eed2cd1c881573168129da70058 before c7874dad84b20433c0fe3919f291a762d40de08b; affected fda871c0ba5d2eed2cd1c881573168129da70058 before e602c93b25bda4a9d0ff1791a4bdbfdcbb074af1; affected fda871c0ba5d2eed2cd1c881573168129da70058 before d306da8833e75f669d93424fd84940236f3850bc; affected fda871c0ba5d2eed2cd1c881573168129da70058 before 2ed3c9d955e8cd6361f130623baa664a75fb345f; affected fda871c0ba5d2eed2cd1c881573168129da70058 before 4606467a75cfc16721937272ed29462a750b60c8; affected 4b17476d809273617d3317fa0d4ae78aa488d760; affected 5.10.20 before 5.10.261; affected 5.11.3 before 5.12 |
| Linux / Linux | affected 5.12; unaffected 0 before 5.12; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/22ec7a9fe9153d2737ee9b2fa6d2e43a1491decf
- https://git.kernel.org/stable/c/ba35b1c674ca3841c0dfadd698f2c1b3ec542d4e
- https://git.kernel.org/stable/c/c7874dad84b20433c0fe3919f291a762d40de08b
- https://git.kernel.org/stable/c/e602c93b25bda4a9d0ff1791a4bdbfdcbb074af1
- https://git.kernel.org/stable/c/d306da8833e75f669d93424fd84940236f3850bc
- https://git.kernel.org/stable/c/2ed3c9d955e8cd6361f130623baa664a75fb345f
- https://git.kernel.org/stable/c/4606467a75cfc16721937272ed29462a750b60c8
ADP enrichment
No English description supplied.
No references supplied.