| 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-2023-53106: nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition |
| |
| This bug influences both st_nci_i2c_remove and st_nci_spi_remove. |
| Take st_nci_i2c_remove as an example. |
| |
| In st_nci_i2c_probe, it called ndlc_probe and bound &ndlc->sm_work |
| with llt_ndlc_sm_work. |
| |
| When it calls ndlc_recv or timeout handler, it will finally call |
| schedule_work to start the work. |
| |
| When we call st_nci_i2c_remove to remove the driver, there |
| may be a sequence as follows: |
| |
| Fix it by finishing the work before cleanup in ndlc_remove |
| |
| CPU0 CPU1 |
| |
| |llt_ndlc_sm_work |
| st_nci_i2c_remove | |
| ndlc_remove | |
| st_nci_remove | |
| nci_free_device| |
| kfree(ndev) | |
| //free ndlc->ndev | |
| |llt_ndlc_rcv_queue |
| |nci_recv_frame |
| |//use ndlc->ndev |
| |
| The Linux kernel CVE team has assigned CVE-2023-53106 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.17 with commit 35630df68d6030daf12dde12ed07bbe26324e6ac and fixed in 4.14.311 with commit 2156490c4b7cacda9a18ec99929940b8376dc0e3 |
| Issue introduced in 3.17 with commit 35630df68d6030daf12dde12ed07bbe26324e6ac and fixed in 4.19.279 with commit 3405eb641dafcc8b28d174784b203c1622c121bf |
| Issue introduced in 3.17 with commit 35630df68d6030daf12dde12ed07bbe26324e6ac and fixed in 5.4.238 with commit b0c202a8dc63008205a5d546559736507a9aae66 |
| Issue introduced in 3.17 with commit 35630df68d6030daf12dde12ed07bbe26324e6ac and fixed in 5.10.176 with commit 43aa468df246175207a7d5d7d6d31b231f15b49c |
| Issue introduced in 3.17 with commit 35630df68d6030daf12dde12ed07bbe26324e6ac and fixed in 5.15.104 with commit 84dd9cc34014e3a3dcce0eb6d54b8a067e97676b |
| Issue introduced in 3.17 with commit 35630df68d6030daf12dde12ed07bbe26324e6ac and fixed in 6.1.21 with commit 5e331022b448fbc5e76f24349cd0246844dcad25 |
| Issue introduced in 3.17 with commit 35630df68d6030daf12dde12ed07bbe26324e6ac and fixed in 6.2.8 with commit f589e5b56c562d99ea74e05b1c3f0eab78aa17a3 |
| Issue introduced in 3.17 with commit 35630df68d6030daf12dde12ed07bbe26324e6ac and fixed in 6.3 with commit 5000fe6c27827a61d8250a7e4a1d26c3298ef4f6 |
| |
| 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-2023-53106 |
| 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/nfc/st-nci/ndlc.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/2156490c4b7cacda9a18ec99929940b8376dc0e3 |
| https://git.kernel.org/stable/c/3405eb641dafcc8b28d174784b203c1622c121bf |
| https://git.kernel.org/stable/c/b0c202a8dc63008205a5d546559736507a9aae66 |
| https://git.kernel.org/stable/c/43aa468df246175207a7d5d7d6d31b231f15b49c |
| https://git.kernel.org/stable/c/84dd9cc34014e3a3dcce0eb6d54b8a067e97676b |
| https://git.kernel.org/stable/c/5e331022b448fbc5e76f24349cd0246844dcad25 |
| https://git.kernel.org/stable/c/f589e5b56c562d99ea74e05b1c3f0eab78aa17a3 |
| https://git.kernel.org/stable/c/5000fe6c27827a61d8250a7e4a1d26c3298ef4f6 |
