In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Fix double free of fcport
The server was crashing after LOGO because fcport was getting freed twice.
-----------[ cut here ]-----------
kernel BUG at mm/slub.c:371!
invalid opcode: 0000 1 SMP PTI
CPU: 35 PID: 4610 Comm: bash Kdump: loaded Tainted: G OE --------- - - 4.18.0-425.3.1.el8.x86_64 #1
Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 09/03/2021
RIP: 0010:set_freepointer.part.57+0x0/0x10
RSP: 0018:ffffb07107027d90 EFLAGS: 00010246
RAX: ffff9cb7e3150000 RBX: ffff9cb7e332b9c0 RCX: ffff9cb7e3150400
RDX: 0000000000001f37 RSI: 0000000000000000 RDI: ffff9cb7c0005500
RBP: fffff693448c5400 R08: 0000000080000000 R09: 0000000000000009
R10: 0000000000000000 R11: 0000000000132af0 R12: ffff9cb7c0005500
R13: ffff9cb7e3150000 R14: ffffffffc06990e0 R15: ffff9cb7ea85ea58
FS: 00007ff6b79c2740(0000) GS:ffff9cb8f7ec0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b426b7d700 CR3: 0000000169c18002 CR4: 00000000007706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
kfree+0x238/0x250
qla2x00_els_dcmd_sp_free+0x20/0x230 [qla2xxx]
? qla24xx_els_dcmd_iocb+0x607/0x690 [qla2xxx]
qla2x00_issue_logo+0x28c/0x2a0 [qla2xxx]
? qla2x00_issue_logo+0x28c/0x2a0 [qla2xxx]
? kernfs_fop_write+0x11e/0x1a0
Remove one of the free calls and add check for valid fcport. Also use
function qla2x00_free_fcport() instead of kfree().
[
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "b03e626bd6d3",
"versionType": "custom"
},
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "282877633b25",
"versionType": "custom"
},
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "f85af9f1aa5e",
"versionType": "custom"
},
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "9b43d2884b54",
"versionType": "custom"
},
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "846fb9f112f6",
"versionType": "custom"
},
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "82f522ae0d97",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "5.15.154",
"versionType": "custom",
"lessThanOrEqual": "5.16"
},
{
"status": "unaffected",
"version": "6.1.84",
"versionType": "custom",
"lessThanOrEqual": "6.2"
},
{
"status": "unaffected",
"version": "6.6.24",
"versionType": "custom",
"lessThanOrEqual": "6.7"
},
{
"status": "unaffected",
"version": "6.7.12",
"versionType": "custom",
"lessThanOrEqual": "6.8"
},
{
"status": "unaffected",
"version": "6.8.3",
"versionType": "custom",
"lessThanOrEqual": "6.9"
},
{
"status": "unaffected",
"version": "6.9",
"versionType": "custom",
"lessThanOrEqual": "*"
}
],
"defaultStatus": "unknown"
}
]
git.kernel.org/stable/c/282877633b25d67021a34169c5b5519b1d4ef65e
git.kernel.org/stable/c/82f522ae0d97119a43da53e0f729275691b9c525
git.kernel.org/stable/c/846fb9f112f618ec6ae181d8dae7961652574774
git.kernel.org/stable/c/9b43d2884b54d415caab48878b526dfe2ae9921b
git.kernel.org/stable/c/b03e626bd6d3f0684f56ee1890d70fc9ca991c04
git.kernel.org/stable/c/f85af9f1aa5e2f53694a6cbe72010f754b5ff862