media: pvrusb2: fix uaf in pvr2_context_set_notify
In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix uaf in pvr2_context_set_notify [Syzbot reported] BUG: KASAN: slab-use-after-free in pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35 Read of size 4 at addr ffff888113aeb0d8 by task kworker/1:1/26 CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.8.0-rc1-syzkaller-00046-gf1a27f081c1f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc4/0x620 mm/kasan/report.c:488 kasan_report+0xda/0x110 mm/kasan/report.c:601 pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35 pvr2_context_notify drivers/media/usb/pvrusb2/pvrusb2-context.c:95 [inline] pvr2_context_disconnect+0x94/0xb0 drivers/media/usb/pvrusb2/pvrusb2-context.c:272 Freed by task 906: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640 poison_slab_object mm/kasan/common.c:241 [inline] __kasan_slab_free+0x106/0x1b0 mm/kasan/common.c:257 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x105/0x340 mm/slub.c:4409 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-
CVE-2024-26875
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-26875
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "e5be15c63804e05b5a94197524023702a259e308",
"lessThan": "ed8000e1e8e9684ab6c30cf2b526c0cea039929c",
"versionType": "git"
},
{
"status": "affected",
"version": "e5be15c63804e05b5a94197524023702a259e308",
"lessThan": "d29ed08964cec8b9729bc55c7bb23f679d7a18fb",
"versionType": "git"
},
{
"status": "affected",
"version": "e5be15c63804e05b5a94197524023702a259e308",
"lessThan": "ab896d93fd6a2cd1afeb034c3cc9226cb499209f",
"versionType": "git"
},
{
"status": "affected",
"version": "e5be15c63804e05b5a94197524023702a259e308",
"lessThan": "eb6e9dce979c08210ff7249e5e0eceb8991bfcd7",
"versionType": "git"
},
{
"status": "affected",
"version": "e5be15c63804e05b5a94197524023702a259e308",
"lessThan": "3a1ec89708d2e57e2712f46241282961b1a7a475",
"versionType": "git"
},
{
"status": "affected",
"version": "e5be15c63804e05b5a94197524023702a259e308",
"lessThan": "8e60b99f6b7ccb3badeb512f5eb613ad45904592",
"versionType": "git"
},
{
"status": "affected",
"version": "e5be15c63804e05b5a94197524023702a259e308",
"lessThan": "40cd818fae875c424a8335009db33c7b5a07de3a",
"versionType": "git"
},
{
"status": "affected",
"version": "e5be15c63804e05b5a94197524023702a259e308",
"lessThan": "eaa410e05bdf562c90b23cdf2d9327f9c4625e16",
"versionType": "git"
},
{
"status": "affected",
"version": "e5be15c63804e05b5a94197524023702a259e308",
"lessThan": "0a0b79ea55de8514e1750884e5fec77f9fdd01ee",
"versionType": "git"
}
],
"programFiles": [
"drivers/media/usb/pvrusb2/pvrusb2-context.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.26"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.26",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.311",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.273",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.214",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.153",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.83",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.23",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.7.11",
"versionType": "semver",
"lessThanOrEqual": "6.7.*"
},
{
"status": "unaffected",
"version": "6.8.2",
"versionType": "semver",
"lessThanOrEqual": "6.8.*"
},
{
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/media/usb/pvrusb2/pvrusb2-context.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-26875
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26440 · Revision 1
- Added to Heist Feed
- Publisher date