CVE-2024-47739: padata: use integer wrap around to prevent deadlock on seq_nr overflow
First published: Mon Oct 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: padata: use integer wrap around to prevent deadlock on seq_nr overflow When submitting more than 2^32 padata objects to padata_do_serial, the current sorting implementation incorrectly sorts padata objects with overflowed seq_nr, causing them to be placed before existing objects in the reorder list. This leads to a deadlock in the serialization process as padata_find_next cannot match padata->seq_nr and pd->processed because the padata instance with overflowed seq_nr will be selected next. To fix this, we use an unsigned integer wrap around to correctly sort padata objects in scenarios with integer overflow.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=5.4<5.10.227 | |
| Linux Linux kernel | >=5.11<5.15.168 | |
| Linux Linux kernel | >=5.16<6.1.113 | |
| Linux Linux kernel | >=6.2<6.6.54 | |
| Linux Linux kernel | >=6.7<6.10.13 | |
| Linux Linux kernel | >=6.11<6.11.2 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/stable/c/1b8cf11b3ca593a8802a51802cd0c28c38501428
- https://git.kernel.org/stable/c/1bd712de96ad7167fe0d608e706cd60587579f16
- https://git.kernel.org/stable/c/46c4079460f4dcaf445860679558eedef4e1bc91
- https://git.kernel.org/stable/c/72164d5b648951684b1a593996b37a6083c61d7d
- https://git.kernel.org/stable/c/9a22b2812393d93d84358a760c347c21939029a6
- https://git.kernel.org/stable/c/9e279e6c1f012b82628b89e1b9c65dbefa8ca25a
- https://git.kernel.org/stable/c/ab205e1c3846326f162180e56825b4ba38ce9c30
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-47739
- https://nvd.nist.gov/vuln/detail/CVE-2024-47739
- https://launchpad.net/bugs/cve/CVE-2024-47739
- https://security-tracker.debian.org/tracker/CVE-2024-47739
- https://ubuntu.com/security/CVE-2024-47739
- https://git.kernel.org/linus/9a22b2812393d93d84358a760c347c21939029a6
- agent/title
- agent/type
- agent/first-publish-date
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/remedy
- agent/severity
- agent/weakness
- collector/usn-cve
- source/Ubuntu
- agent/event
- collector/security-tracker-debian
- source/Debian
- collector/nvd-cve
- agent/author
- agent/references
- agent/description
- agent/softwarecombine
- agent/tags
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/5.4
- version/linux linux kernel/5.11
- version/linux linux kernel/5.16
- version/linux linux kernel/6.2
- version/linux linux kernel/6.7
- version/linux linux kernel/6.11
- package-manager/debian