Description
In the Linux kernel, the following vulnerability has been resolved: HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait() In picolcd_send_and_wait(), an integer overflow of the signed loop counter 'k' can theoretically lead to a NULL pointer dereference of 'raw_data'. If the loop executes more than INT_MAX times, 'k' becomes negative, making the condition 'k < size' true even when 'size' is 0. Change the type of 'k' to 'unsigned int' to prevent the overflow and eliminate the out-of-bounds access. Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool. [jkosina@suse.com: extended hash length]
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
fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 to < 42dc0b7b55fe0499fc09183f34a1c46d1dcccf77affectedfabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 to < 48caee2c106b03301c72fe389ebff00d852c58d5affectedfabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 to < dc176447c7279435c46735db7da81aed1ec25cc2affectedfabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 to < a02d5d7ad7ae5fa3756b8332f7350e973085dcb3affectedfabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 to < e4edeefb8d5bfceb2058e2b3291f4ae1e5a76e61affectedfabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 to < d354e523c6f740db758cafcd4c11bb7913285ed8affectedfabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 to < ef649703dce0df1364fcec3cdad9b32d1c522939affectedfabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 to < 0021eb09041f021c079be1022934a280f7f176c0affected
Linux Linux
Default version status: affected
3.7affected0 to < 3.7unaffected5.10.261 to ≤ 5.10.*unaffected5.15.212 to ≤ 5.15.*unaffected6.1.178 to ≤ 6.1.*unaffected6.6.145 to ≤ 6.6.*unaffected6.12.97 to ≤ 6.12.*unaffected6.18.40 to ≤ 6.18.*unaffected7.1.5 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/42dc0b7b55fe0499fc09183f34a1c46d1dcccf77 ↗
- https://git.kernel.org/stable/c/48caee2c106b03301c72fe389ebff00d852c58d5 ↗
- https://git.kernel.org/stable/c/dc176447c7279435c46735db7da81aed1ec25cc2 ↗
- https://git.kernel.org/stable/c/a02d5d7ad7ae5fa3756b8332f7350e973085dcb3 ↗
- https://git.kernel.org/stable/c/e4edeefb8d5bfceb2058e2b3291f4ae1e5a76e61 ↗
- https://git.kernel.org/stable/c/d354e523c6f740db758cafcd4c11bb7913285ed8 ↗
- https://git.kernel.org/stable/c/ef649703dce0df1364fcec3cdad9b32d1c522939 ↗
- https://git.kernel.org/stable/c/0021eb09041f021c079be1022934a280f7f176c0 ↗