CVE-2021-47456
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
can: peak_pci: peak_pci_remove(): fix UAF
In the Linux kernel, the following vulnerability has been resolved: can: peak_pci: peak_pci_remove(): fix UAF When remove the module peek_pci, referencing 'chan' again after releasing 'dev' will cause UAF. Fix this by releasing 'dev' later. The following log reveals it: [ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537 [ 35.965513 ] Call Trace: [ 35.965718 ] dump_stack_lvl+0xa8/0xd1 [ 35.966028 ] print_address_description+0x87/0x3b0 [ 35.966420 ] kasan_report+0x172/0x1c0 [ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170 [ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.967945 ] __asan_report_load8_noabort+0x14/0x20 [ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.968752 ] pci_device_remove+0xa9/0x250
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd | affected | git | 1c616528ba4aeb1125a06b407572ab7b56acae38 | Unavailable | None listed |
| e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd | affected | git | 447d44cd2f67a20b596ede3ca3cd67086dfd9ca9 | Unavailable | None listed |
| e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd | affected | git | 34914971bb3244db4ce2be44e9438a9b30c56250 | Unavailable | None listed |
| e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd | affected | git | adbda14730aacce41c0d3596415aa39ad63eafd9 | Unavailable | None listed |
| e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd | affected | git | 1248582e47a9f7ce0ecd156c39fc61f8b6aa3699 | Unavailable | None listed |
| e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd | affected | git | 28f28e4bc3a5e0051faa963f10b778ab38c1db69 | Unavailable | None listed |
| e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd | affected | git | 0e5afdc2315b0737edcf55bede4ee1640d2d464d | Unavailable | None listed |
| e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd | affected | git | 949fe9b35570361bc6ee2652f89a0561b26eec98 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.4 | Unavailable | None listed |
| 4.4.290 | unaffected | semver | Unavailable | 4.4.* | None listed |
| 4.9.288 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.253 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.214 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.156 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.76 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.14.15 | unaffected | semver | Unavailable | 5.14.* | None listed |
| 5.15 | unaffected | original_commit_for_fix | Unavailable | * | None listed |