Description
In the Linux kernel, the following vulnerability has been resolved: ipmi: ssif: initialize ssif_info->client early During probe ssif_info->client is dereferenced in error path. However, it is set when some of the error checking has already been done. This causes following kernel crash if an error path is taken: [ 30.645593][ T674] ipmi_ssif 0-000e: ipmi_ssif: Not probing, Interface already present [ 30.657616][ T674] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000088 ... [ 30.657723][ T674] pc : __dev_printk+0x28/0xa0 [ 30.657732][ T674] lr : _dev_err+0x7c/0xa0 ... [ 30.657772][ T674] Call trace: [ 30.657775][ T674] __dev_printk+0x28/0xa0 [ 30.657778][ T674] _dev_err+0x7c/0xa0 [ 30.657781][ T674] ssif_probe+0x548/0x900 [ipmi_ssif 62ce4b08badc1458fd896206d9ef69a3c31f3d3e] [ 30.657791][ T674] i2c_device_probe+0x37c/0x3c0 ... Initialize ssif_info->client before any error path can be taken. Clear i2c_client data in the error path to prevent the dangling pointer from leaking.
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
c4436c9149c5d2bc0c49ab57ec85c75ea1c4d61c to < 8efd6a3391f7b0b19fb0c38e50add06ca30c94afaffectedc4436c9149c5d2bc0c49ab57ec85c75ea1c4d61c to < 1f6ab847461ce7dd89ae9db2dd4658c993355d7caffectedc4436c9149c5d2bc0c49ab57ec85c75ea1c4d61c to < 77a7311ca167aa5b7055c549a940a56e73ee5f29affectedc4436c9149c5d2bc0c49ab57ec85c75ea1c4d61c to < 34f35f8f14bc406efc06ee4ff73202c6fd245d15affected
Linux Linux
Default version status: affected
5.4affected0 to < 5.4unaffected5.4.169 to ≤ 5.4.*unaffected5.10.89 to ≤ 5.10.*unaffected5.15.12 to ≤ 5.15.*unaffected5.16 to ≤ *unaffected