| 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-2022-48857: NFC: port100: fix use-after-free in port100_send_complete |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| NFC: port100: fix use-after-free in port100_send_complete |
| |
| Syzbot reported UAF in port100_send_complete(). The root case is in |
| missing usb_kill_urb() calls on error handling path of ->probe function. |
| |
| port100_send_complete() accesses devm allocated memory which will be |
| freed on probe failure. We should kill this urbs before returning an |
| error from probe function to prevent reported use-after-free |
| |
| Fail log: |
| |
| BUG: KASAN: use-after-free in port100_send_complete+0x16e/0x1a0 drivers/nfc/port100.c:935 |
| Read of size 1 at addr ffff88801bb59540 by task ksoftirqd/2/26 |
| ... |
| Call Trace: |
| <TASK> |
| __dump_stack lib/dump_stack.c:88 [inline] |
| dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 |
| print_address_description.constprop.0.cold+0x8d/0x303 mm/kasan/report.c:255 |
| __kasan_report mm/kasan/report.c:442 [inline] |
| kasan_report.cold+0x83/0xdf mm/kasan/report.c:459 |
| port100_send_complete+0x16e/0x1a0 drivers/nfc/port100.c:935 |
| __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1670 |
| |
| ... |
| |
| Allocated by task 1255: |
| kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 |
| kasan_set_track mm/kasan/common.c:45 [inline] |
| set_alloc_info mm/kasan/common.c:436 [inline] |
| ____kasan_kmalloc mm/kasan/common.c:515 [inline] |
| ____kasan_kmalloc mm/kasan/common.c:474 [inline] |
| __kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:524 |
| alloc_dr drivers/base/devres.c:116 [inline] |
| devm_kmalloc+0x96/0x1d0 drivers/base/devres.c:823 |
| devm_kzalloc include/linux/device.h:209 [inline] |
| port100_probe+0x8a/0x1320 drivers/nfc/port100.c:1502 |
| |
| Freed by task 1255: |
| kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 |
| kasan_set_track+0x21/0x30 mm/kasan/common.c:45 |
| kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 |
| ____kasan_slab_free mm/kasan/common.c:366 [inline] |
| ____kasan_slab_free+0xff/0x140 mm/kasan/common.c:328 |
| kasan_slab_free include/linux/kasan.h:236 [inline] |
| __cache_free mm/slab.c:3437 [inline] |
| kfree+0xf8/0x2b0 mm/slab.c:3794 |
| release_nodes+0x112/0x1a0 drivers/base/devres.c:501 |
| devres_release_all+0x114/0x190 drivers/base/devres.c:530 |
| really_probe+0x626/0xcc0 drivers/base/dd.c:670 |
| |
| The Linux kernel CVE team has assigned CVE-2022-48857 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.13 with commit 0347a6ab300a1532c298823408d6e51ccf4e4f45 and fixed in 4.9.307 with commit 205c4ec78e71cbf561794e6043da80e7bae6790f |
| Issue introduced in 3.13 with commit 0347a6ab300a1532c298823408d6e51ccf4e4f45 and fixed in 4.14.272 with commit 32e866ae5a7af590597ef4bcff8451bf96d5f980 |
| Issue introduced in 3.13 with commit 0347a6ab300a1532c298823408d6e51ccf4e4f45 and fixed in 4.19.235 with commit b1db33d4e54bc35d8db96ce143ea0ef92e23d58e |
| Issue introduced in 3.13 with commit 0347a6ab300a1532c298823408d6e51ccf4e4f45 and fixed in 5.4.185 with commit cd2a5c0da0d1ddf11d1f84e9c9b1949f50f6e161 |
| Issue introduced in 3.13 with commit 0347a6ab300a1532c298823408d6e51ccf4e4f45 and fixed in 5.10.106 with commit 2b1c85f56512d49e43bc53741fce2f508cd90029 |
| Issue introduced in 3.13 with commit 0347a6ab300a1532c298823408d6e51ccf4e4f45 and fixed in 5.15.29 with commit 0e721b8f2ee5e11376dd55363f9ccb539d754b8a |
| Issue introduced in 3.13 with commit 0347a6ab300a1532c298823408d6e51ccf4e4f45 and fixed in 5.16.15 with commit 7194737e1be8fdc89d2a9382bd2f371f7ee2eda8 |
| Issue introduced in 3.13 with commit 0347a6ab300a1532c298823408d6e51ccf4e4f45 and fixed in 5.17 with commit f80cfe2f26581f188429c12bd937eb905ad3ac7b |
| |
| 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-2022-48857 |
| 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/port100.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/205c4ec78e71cbf561794e6043da80e7bae6790f |
| https://git.kernel.org/stable/c/32e866ae5a7af590597ef4bcff8451bf96d5f980 |
| https://git.kernel.org/stable/c/b1db33d4e54bc35d8db96ce143ea0ef92e23d58e |
| https://git.kernel.org/stable/c/cd2a5c0da0d1ddf11d1f84e9c9b1949f50f6e161 |
| https://git.kernel.org/stable/c/2b1c85f56512d49e43bc53741fce2f508cd90029 |
| https://git.kernel.org/stable/c/0e721b8f2ee5e11376dd55363f9ccb539d754b8a |
| https://git.kernel.org/stable/c/7194737e1be8fdc89d2a9382bd2f371f7ee2eda8 |
| https://git.kernel.org/stable/c/f80cfe2f26581f188429c12bd937eb905ad3ac7b |
