| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-26929: scsi: qla2xxx: Fix double free of fcport |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| scsi: qla2xxx: Fix double free of fcport |
| |
| The server was crashing after LOGO because fcport was getting freed twice. |
| |
| -----------[ cut here ]----------- |
| kernel BUG at mm/slub.c:371! |
| invalid opcode: 0000 1 SMP PTI |
| CPU: 35 PID: 4610 Comm: bash Kdump: loaded Tainted: G OE --------- - - 4.18.0-425.3.1.el8.x86_64 #1 |
| Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 09/03/2021 |
| RIP: 0010:set_freepointer.part.57+0x0/0x10 |
| RSP: 0018:ffffb07107027d90 EFLAGS: 00010246 |
| RAX: ffff9cb7e3150000 RBX: ffff9cb7e332b9c0 RCX: ffff9cb7e3150400 |
| RDX: 0000000000001f37 RSI: 0000000000000000 RDI: ffff9cb7c0005500 |
| RBP: fffff693448c5400 R08: 0000000080000000 R09: 0000000000000009 |
| R10: 0000000000000000 R11: 0000000000132af0 R12: ffff9cb7c0005500 |
| R13: ffff9cb7e3150000 R14: ffffffffc06990e0 R15: ffff9cb7ea85ea58 |
| FS: 00007ff6b79c2740(0000) GS:ffff9cb8f7ec0000(0000) knlGS:0000000000000000 |
| CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 |
| CR2: 000055b426b7d700 CR3: 0000000169c18002 CR4: 00000000007706e0 |
| DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 |
| DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 |
| PKRU: 55555554 |
| Call Trace: |
| kfree+0x238/0x250 |
| qla2x00_els_dcmd_sp_free+0x20/0x230 [qla2xxx] |
| ? qla24xx_els_dcmd_iocb+0x607/0x690 [qla2xxx] |
| qla2x00_issue_logo+0x28c/0x2a0 [qla2xxx] |
| ? qla2x00_issue_logo+0x28c/0x2a0 [qla2xxx] |
| ? kernfs_fop_write+0x11e/0x1a0 |
| |
| Remove one of the free calls and add check for valid fcport. Also use |
| function qla2x00_free_fcport() instead of kfree(). |
| |
| The Linux kernel CVE team has assigned CVE-2024-26929 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.15.154 with commit b03e626bd6d3f0684f56ee1890d70fc9ca991c04 |
| Fixed in 6.1.84 with commit 282877633b25d67021a34169c5b5519b1d4ef65e |
| Fixed in 6.6.24 with commit f85af9f1aa5e2f53694a6cbe72010f754b5ff862 |
| Fixed in 6.7.12 with commit 9b43d2884b54d415caab48878b526dfe2ae9921b |
| Fixed in 6.8.3 with commit 846fb9f112f618ec6ae181d8dae7961652574774 |
| Fixed in 6.9 with commit 82f522ae0d97119a43da53e0f729275691b9c525 |
| |
| 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-2024-26929 |
| 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/scsi/qla2xxx/qla_iocb.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/b03e626bd6d3f0684f56ee1890d70fc9ca991c04 |
| https://git.kernel.org/stable/c/282877633b25d67021a34169c5b5519b1d4ef65e |
| https://git.kernel.org/stable/c/f85af9f1aa5e2f53694a6cbe72010f754b5ff862 |
| https://git.kernel.org/stable/c/9b43d2884b54d415caab48878b526dfe2ae9921b |
| https://git.kernel.org/stable/c/846fb9f112f618ec6ae181d8dae7961652574774 |
| https://git.kernel.org/stable/c/82f522ae0d97119a43da53e0f729275691b9c525 |
