| From bippy-1.1.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-49807: nvmet: fix a memory leak in nvmet_auth_set_key |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| nvmet: fix a memory leak in nvmet_auth_set_key |
| |
| When changing dhchap secrets we need to release the old |
| secrets as well. |
| |
| kmemleak complaint: |
| -- |
| unreferenced object 0xffff8c7f44ed8180 (size 64): |
| comm "check", pid 7304, jiffies 4295686133 (age 72034.246s) |
| hex dump (first 32 bytes): |
| 44 48 48 43 2d 31 3a 30 30 3a 4c 64 4c 4f 64 71 DHHC-1:00:LdLOdq |
| 79 56 69 67 77 48 55 32 6d 5a 59 4c 7a 35 59 38 yVigwHU2mZYLz5Y8 |
| backtrace: |
| [<00000000b6fc5071>] kstrdup+0x2e/0x60 |
| [<00000000f0f4633f>] 0xffffffffc0e07ee6 |
| [<0000000053006c05>] 0xffffffffc0dff783 |
| [<00000000419ae922>] configfs_write_iter+0xb1/0x120 |
| [<000000008183c424>] vfs_write+0x2be/0x3c0 |
| [<000000009005a2a5>] ksys_write+0x5f/0xe0 |
| [<00000000cd495c89>] do_syscall_64+0x38/0x90 |
| [<00000000f2a84ac5>] entry_SYSCALL_64_after_hwframe+0x63/0xcd |
| |
| The Linux kernel CVE team has assigned CVE-2022-49807 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.0 with commit db1312dd95488b5e6ff362ff66fcf953a46b1821 and fixed in 6.0.10 with commit 65710ea51d4a185592c7b14c9e33d0c4a364f074 |
| Issue introduced in 6.0 with commit db1312dd95488b5e6ff362ff66fcf953a46b1821 and fixed in 6.1 with commit 0a52566279b4ee65ecd2503d7b7342851f84755c |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2022-49807 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/nvme/target/auth.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/65710ea51d4a185592c7b14c9e33d0c4a364f074 |
| https://git.kernel.org/stable/c/0a52566279b4ee65ecd2503d7b7342851f84755c |
