In the Linux kernel, the following vulnerability has been resolved:
perf/core: Bail out early if the request AUX area is out of bound When
perf-record with a large AUX area, e.g 4GB, it fails with: #perf record -C
0 -m ,4G -e arm_spe_0// – sleep 1 failed to mmap with 12 (Cannot allocate
memory) and it reveals a WARNING with __alloc_pages(): ------------[ cut
here ]------------ WARNING: CPU: 44 PID: 17573 at mm/page_alloc.c:5568
__alloc_pages+0x1ec/0x248 Call trace: __alloc_pages+0x1ec/0x248
__kmalloc_large_node+0xc0/0x1f8 __kmalloc_node+0x134/0x1e8
rb_alloc_aux+0xe0/0x298 perf_mmap+0x440/0x660 mmap_region+0x308/0x8a8
do_mmap+0x3c0/0x528 vm_mmap_pgoff+0xf4/0x1b8 ksys_mmap_pgoff+0x18c/0x218
__arm64_sys_mmap+0x38/0x58 invoke_syscall+0x50/0x128
el0_svc_common.constprop.0+0x58/0x188 do_el0_svc+0x34/0x50
el0_svc+0x34/0x108 el0t_64_sync_handler+0xb8/0xc0 el0t_64_sync+0x1a4/0x1a8
‘rb->aux_pages’ allocated by kcalloc() is a pointer array which is used to
maintains AUX trace pages. The allocated page for this array is physically
contiguous (and virtually contiguous) with an order of 0…MAX_ORDER. If the
size of pointer array crosses the limitation set by MAX_ORDER, it reveals a
WARNING. So bail out early with -ENOMEM if the request AUX area is out of
bound, e.g.: #perf record -C 0 -m ,4G -e arm_spe_0// – sleep 1 failed to
mmap with 12 (Cannot allocate memory)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws-6.5 | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
git.kernel.org/linus/54aee5f15b83437f23b2b2469bcf21bdd9823916 (6.7-rc1)
git.kernel.org/stable/c/1a2a4202c60fcdffbf04f259002ce9bff39edece
git.kernel.org/stable/c/2424410f94a94d91230ced094062d859714c984a
git.kernel.org/stable/c/2e905e608e38cf7f8dcddcf8a6036e91a78444cb
git.kernel.org/stable/c/54aee5f15b83437f23b2b2469bcf21bdd9823916
git.kernel.org/stable/c/788c0b3442ead737008934947730a6d1ff703734
git.kernel.org/stable/c/8c504f615d7ed60ae035c51d0c789137ced6797f
git.kernel.org/stable/c/9ce4e87a8efd37c85766ec08b15e885cab08553a
git.kernel.org/stable/c/fd0df3f8719201dbe61a4d39083d5aecd705399a
launchpad.net/bugs/cve/CVE-2023-52835
nvd.nist.gov/vuln/detail/CVE-2023-52835
security-tracker.debian.org/tracker/CVE-2023-52835
www.cve.org/CVERecord?id=CVE-2023-52835