Description
In the Linux kernel, the following vulnerability has been resolved: Input: uinput - reject requests with unreasonable number of slots When exercising uinput interface syzkaller may try setting up device with a really large number of slots, which causes memory allocation failure in input_mt_init_slots(). While this allocation failure is handled properly and request is rejected, it results in syzkaller reports. Additionally, such request may put undue burden on the system which will try to free a lot of memory for a bogus request. Fix it by limiting allowed number of slots to 100. This can easily be extended if we see devices that can track more than 100 contacts.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
38e7afe96c7c0ad900824911c61fdb04078033dc to < 9c6d189f0c1c59ba9a32326ec82a0b367a3cd47baffected38e7afe96c7c0ad900824911c61fdb04078033dc to < 597ff930296c4c8fc6b6a536884d4f1a7187ec70affected38e7afe96c7c0ad900824911c61fdb04078033dc to < 51fa08edd80003db700bdaa099385c5900d27f4baffected38e7afe96c7c0ad900824911c61fdb04078033dc to < 9719687398dea8a6a12a10321a54dd75eec7ab2daffected38e7afe96c7c0ad900824911c61fdb04078033dc to < 61df76619e270a46fd427fbdeb670ad491c42de2affected38e7afe96c7c0ad900824911c61fdb04078033dc to < a4858b00a1ec57043697fb935565fe267f161833affected38e7afe96c7c0ad900824911c61fdb04078033dc to < d76fc0f0b18d49b7e721c9e4975ef4bffde2f3e7affected38e7afe96c7c0ad900824911c61fdb04078033dc to < 206f533a0a7c683982af473079c4111f4a0f9f5eaffected
Linux Linux
Default version status: affected
2.6.36affected0 to < 2.6.36unaffected4.19.322 to ≤ 4.19.*unaffected5.4.284 to ≤ 5.4.*unaffected5.10.226 to ≤ 5.10.*unaffected5.15.167 to ≤ 5.15.*unaffected6.1.110 to ≤ 6.1.*unaffected6.6.51 to ≤ 6.6.*unaffected6.10.10 to ≤ 6.10.*unaffected6.11 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/9c6d189f0c1c59ba9a32326ec82a0b367a3cd47b ↗
- https://git.kernel.org/stable/c/597ff930296c4c8fc6b6a536884d4f1a7187ec70 ↗
- https://git.kernel.org/stable/c/51fa08edd80003db700bdaa099385c5900d27f4b ↗
- https://git.kernel.org/stable/c/9719687398dea8a6a12a10321a54dd75eec7ab2d ↗
- https://git.kernel.org/stable/c/61df76619e270a46fd427fbdeb670ad491c42de2 ↗
- https://git.kernel.org/stable/c/a4858b00a1ec57043697fb935565fe267f161833 ↗
- https://git.kernel.org/stable/c/d76fc0f0b18d49b7e721c9e4975ef4bffde2f3e7 ↗
- https://git.kernel.org/stable/c/206f533a0a7c683982af473079c4111f4a0f9f5e ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html ↗