| 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-2024-40901: scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory |
| |
| There is a potential out-of-bounds access when using test_bit() on a single |
| word. The test_bit() and set_bit() functions operate on long values, and |
| when testing or setting a single word, they can exceed the word |
| boundary. KASAN detects this issue and produces a dump: |
| |
| BUG: KASAN: slab-out-of-bounds in _scsih_add_device.constprop.0 (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 drivers/scsi/mpt3sas/mpt3sas_scsih.c:7331) mpt3sas |
| |
| Write of size 8 at addr ffff8881d26e3c60 by task kworker/u1536:2/2965 |
| |
| For full log, please look at [1]. |
| |
| Make the allocation at least the size of sizeof(unsigned long) so that |
| set_bit() and test_bit() have sufficient room for read/write operations |
| without overwriting unallocated memory. |
| |
| [1] Link: https://lore.kernel.org/all/ZkNcALr3W3KGYYJG@gmail.com/ |
| |
| The Linux kernel CVE team has assigned CVE-2024-40901 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.10 with commit c696f7b83edeac804e898952058089143f49ca0a and fixed in 4.19.317 with commit e9bce7c751f6d6c7be88c0bc081a66aaf61a23ee |
| Issue introduced in 4.10 with commit c696f7b83edeac804e898952058089143f49ca0a and fixed in 5.4.279 with commit 19649e49a6df07cd2e03e0a11396fd3a99485ec2 |
| Issue introduced in 4.10 with commit c696f7b83edeac804e898952058089143f49ca0a and fixed in 5.10.221 with commit 0081d2b3ae0a17a86b8cc0fa3c8bdc54e233ba16 |
| Issue introduced in 4.10 with commit c696f7b83edeac804e898952058089143f49ca0a and fixed in 5.15.162 with commit 521f333e644c4246ca04a4fc4772edc53dd2a801 |
| Issue introduced in 4.10 with commit c696f7b83edeac804e898952058089143f49ca0a and fixed in 6.1.95 with commit 46bab2bcd771e725ff5ca3a68ba68cfeac45676c |
| Issue introduced in 4.10 with commit c696f7b83edeac804e898952058089143f49ca0a and fixed in 6.6.35 with commit 9079338c5a0d1f1fee34fb1c9e99b754efe414c5 |
| Issue introduced in 4.10 with commit c696f7b83edeac804e898952058089143f49ca0a and fixed in 6.9.6 with commit 18abb5db0aa9b2d48f7037a88b41af2eef821674 |
| Issue introduced in 4.10 with commit c696f7b83edeac804e898952058089143f49ca0a and fixed in 6.10 with commit 4254dfeda82f20844299dca6c38cbffcfd499f41 |
| |
| 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-2024-40901 |
| 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/mpt3sas/mpt3sas_base.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/e9bce7c751f6d6c7be88c0bc081a66aaf61a23ee |
| https://git.kernel.org/stable/c/19649e49a6df07cd2e03e0a11396fd3a99485ec2 |
| https://git.kernel.org/stable/c/0081d2b3ae0a17a86b8cc0fa3c8bdc54e233ba16 |
| https://git.kernel.org/stable/c/521f333e644c4246ca04a4fc4772edc53dd2a801 |
| https://git.kernel.org/stable/c/46bab2bcd771e725ff5ca3a68ba68cfeac45676c |
| https://git.kernel.org/stable/c/9079338c5a0d1f1fee34fb1c9e99b754efe414c5 |
| https://git.kernel.org/stable/c/18abb5db0aa9b2d48f7037a88b41af2eef821674 |
| https://git.kernel.org/stable/c/4254dfeda82f20844299dca6c38cbffcfd499f41 |
