CVE-2022-49927
nfs4: Fix kmemleak when allocate slot failed
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nfs4: Fix kmemleak when allocate slot failed
In the Linux kernel, the following vulnerability has been resolved: nfs4: Fix kmemleak when allocate slot failed If one of the slot allocate failed, should cleanup all the other allocated slots, otherwise, the allocated slots will leak: unreferenced object 0xffff8881115aa100 (size 64): comm ""mount.nfs"", pid 679, jiffies 4294744957 (age 115.037s) hex dump (first 32 bytes): 00 cc 19 73 81 88 ff ff 00 a0 5a 11 81 88 ff ff ...s......Z..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000007a4c434a>] nfs4_find_or_create_slot+0x8e/0x130 [<000000005472a39c>] nfs4_realloc_slot_table+0x23f/0x270 [<00000000cd8ca0eb>] nfs40_init_client+0x4a/0x90 [<00000000128486db>] nfs4_init_client+0xce/0x270 [<000000008d2cacad>] nfs4_set_client+0x1a2/0x2b0 [<000000000e593b52>] nfs4_create_server+0x300/0x5f0 [<00000000e4425dd2>] nfs4_try_get_tree+0x65/0x110 [<00000000d3a6176f>] vfs_get_tree+0x41/0xf0 [<0000000016b5ad4c>] path_mount+0x9b3/0xdd0 [<00000000494cae71>] __x64_sys_mount+0x190/0x1d0 [<000000005d56bdec>] do_syscall_64+0x35/0x80 [<00000000687c9ae4>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
Reserved 2025-05-01 | Published 2025-05-01 | Updated 2025-05-04 | Assigner Linuxgit.kernel.org/...c/84b5cb476903003ae9ca88f32b57ff0eaefa6d4c
git.kernel.org/...c/aae35a0c8a775fa4afa6a4e7dab3f936f1f89bbb
git.kernel.org/...c/86ce0e93cf6fb4d0c447323ac66577c642628b9d
git.kernel.org/...c/925cb538bd5851154602818dc80bf4b4d924c127
git.kernel.org/...c/45aea4fbf61e205649c29200726b9f45c1718a67
git.kernel.org/...c/24641993a7dce6b1628645f4e1d97ca06c9f765d
git.kernel.org/...c/db333ae981fb8843c383aa7dbf62cc682597d401
git.kernel.org/...c/7e8436728e22181c3f12a5dbabd35ed3a8b8c593
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